|  | /* | 
|  | *  ARIA implementation | 
|  | * | 
|  | *  Copyright (C) 2006-2017, ARM Limited, All Rights Reserved | 
|  | *  SPDX-License-Identifier: Apache-2.0 | 
|  | * | 
|  | *  Licensed under the Apache License, Version 2.0 (the "License"); you may | 
|  | *  not use this file except in compliance with the License. | 
|  | *  You may obtain a copy of the License at | 
|  | * | 
|  | *  http://www.apache.org/licenses/LICENSE-2.0 | 
|  | * | 
|  | *  Unless required by applicable law or agreed to in writing, software | 
|  | *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | 
|  | *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | *  See the License for the specific language governing permissions and | 
|  | *  limitations under the License. | 
|  | * | 
|  | *  This file is part of mbed TLS (https://tls.mbed.org) | 
|  | */ | 
|  |  | 
|  | /* | 
|  | * This implementation is based on the following standards: | 
|  | * [1] http://210.104.33.10/ARIA/doc/ARIA-specification-e.pdf | 
|  | * [2] https://tools.ietf.org/html/rfc5794 | 
|  | */ | 
|  |  | 
|  | #if !defined(MBEDTLS_CONFIG_FILE) | 
|  | #include "mbedtls/config.h" | 
|  | #else | 
|  | #include MBEDTLS_CONFIG_FILE | 
|  | #endif | 
|  |  | 
|  | #if defined(MBEDTLS_ARIA_C) | 
|  |  | 
|  | #include "mbedtls/aria.h" | 
|  |  | 
|  | #include <string.h> | 
|  |  | 
|  | #if defined(MBEDTLS_SELF_TEST) | 
|  | #if defined(MBEDTLS_PLATFORM_C) | 
|  | #include "mbedtls/platform.h" | 
|  | #else | 
|  | #include <stdio.h> | 
|  | #define mbedtls_printf printf | 
|  | #endif /* MBEDTLS_PLATFORM_C */ | 
|  | #endif /* MBEDTLS_SELF_TEST */ | 
|  |  | 
|  | #if !defined(MBEDTLS_ARIA_ALT) | 
|  |  | 
|  | #include "mbedtls/platform_util.h" | 
|  |  | 
|  | #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ | 
|  | !defined(inline) && !defined(__cplusplus) | 
|  | #define inline __inline | 
|  | #endif | 
|  |  | 
|  | /* Parameter validation macros */ | 
|  | #define ARIA_VALIDATE_RET( cond )                                       \ | 
|  | MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ARIA_BAD_INPUT_DATA ) | 
|  | #define ARIA_VALIDATE( cond )                                           \ | 
|  | MBEDTLS_INTERNAL_VALIDATE( cond ) | 
|  |  | 
|  | /* | 
|  | * 32-bit integer manipulation macros (little endian) | 
|  | */ | 
|  | #ifndef GET_UINT32_LE | 
|  | #define GET_UINT32_LE( n, b, i )                \ | 
|  | {                                               \ | 
|  | (n) = ( (uint32_t) (b)[(i)    ]       )     \ | 
|  | | ( (uint32_t) (b)[(i) + 1] <<  8 )     \ | 
|  | | ( (uint32_t) (b)[(i) + 2] << 16 )     \ | 
|  | | ( (uint32_t) (b)[(i) + 3] << 24 );    \ | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #ifndef PUT_UINT32_LE | 
|  | #define PUT_UINT32_LE( n, b, i )                                \ | 
|  | {                                                               \ | 
|  | (b)[(i)    ] = (unsigned char) ( ( (n)       ) & 0xFF );    \ | 
|  | (b)[(i) + 1] = (unsigned char) ( ( (n) >>  8 ) & 0xFF );    \ | 
|  | (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF );    \ | 
|  | (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF );    \ | 
|  | } | 
|  | #endif | 
|  |  | 
|  | /* | 
|  | * modify byte order: ( A B C D ) -> ( B A D C ), i.e. swap pairs of bytes | 
|  | * | 
|  | * This is submatrix P1 in [1] Appendix B.1 | 
|  | * | 
|  | * Common compilers fail to translate this to minimal number of instructions, | 
|  | * so let's provide asm versions for common platforms with C fallback. | 
|  | */ | 
|  | #if defined(MBEDTLS_HAVE_ASM) | 
|  | #if defined(__arm__) /* rev16 available from v6 up */ | 
|  | /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */ | 
|  | #if defined(__GNUC__) && \ | 
|  | ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 ) && \ | 
|  | __ARM_ARCH >= 6 | 
|  | static inline uint32_t aria_p1( uint32_t x ) | 
|  | { | 
|  | uint32_t r; | 
|  | __asm( "rev16 %0, %1" : "=l" (r) : "l" (x) ); | 
|  | return( r ); | 
|  | } | 
|  | #define ARIA_P1 aria_p1 | 
|  | #elif defined(__ARMCC_VERSION) && __ARMCC_VERSION < 6000000 && \ | 
|  | ( __TARGET_ARCH_ARM >= 6 || __TARGET_ARCH_THUMB >= 3 ) | 
|  | static inline uint32_t aria_p1( uint32_t x ) | 
|  | { | 
|  | uint32_t r; | 
|  | __asm( "rev16 r, x" ); | 
|  | return( r ); | 
|  | } | 
|  | #define ARIA_P1 aria_p1 | 
|  | #endif | 
|  | #endif /* arm */ | 
|  | #if defined(__GNUC__) && \ | 
|  | defined(__i386__) || defined(__amd64__) || defined( __x86_64__) | 
|  | /* I couldn't find an Intel equivalent of rev16, so two instructions */ | 
|  | #define ARIA_P1(x) ARIA_P2( ARIA_P3( x ) ) | 
|  | #endif /* x86 gnuc */ | 
|  | #endif /* MBEDTLS_HAVE_ASM && GNUC */ | 
|  | #if !defined(ARIA_P1) | 
|  | #define ARIA_P1(x) ((((x) >> 8) & 0x00FF00FF) ^ (((x) & 0x00FF00FF) << 8)) | 
|  | #endif | 
|  |  | 
|  | /* | 
|  | * modify byte order: ( A B C D ) -> ( C D A B ), i.e. rotate by 16 bits | 
|  | * | 
|  | * This is submatrix P2 in [1] Appendix B.1 | 
|  | * | 
|  | * Common compilers will translate this to a single instruction. | 
|  | */ | 
|  | #define ARIA_P2(x) (((x) >> 16) ^ ((x) << 16)) | 
|  |  | 
|  | /* | 
|  | * modify byte order: ( A B C D ) -> ( D C B A ), i.e. change endianness | 
|  | * | 
|  | * This is submatrix P3 in [1] Appendix B.1 | 
|  | * | 
|  | * Some compilers fail to translate this to a single instruction, | 
|  | * so let's provide asm versions for common platforms with C fallback. | 
|  | */ | 
|  | #if defined(MBEDTLS_HAVE_ASM) | 
|  | #if defined(__arm__) /* rev available from v6 up */ | 
|  | /* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */ | 
|  | #if defined(__GNUC__) && \ | 
|  | ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 ) && \ | 
|  | __ARM_ARCH >= 6 | 
|  | static inline uint32_t aria_p3( uint32_t x ) | 
|  | { | 
|  | uint32_t r; | 
|  | __asm( "rev %0, %1" : "=l" (r) : "l" (x) ); | 
|  | return( r ); | 
|  | } | 
|  | #define ARIA_P3 aria_p3 | 
|  | #elif defined(__ARMCC_VERSION) && __ARMCC_VERSION < 6000000 && \ | 
|  | ( __TARGET_ARCH_ARM >= 6 || __TARGET_ARCH_THUMB >= 3 ) | 
|  | static inline uint32_t aria_p3( uint32_t x ) | 
|  | { | 
|  | uint32_t r; | 
|  | __asm( "rev r, x" ); | 
|  | return( r ); | 
|  | } | 
|  | #define ARIA_P3 aria_p3 | 
|  | #endif | 
|  | #endif /* arm */ | 
|  | #if defined(__GNUC__) && \ | 
|  | defined(__i386__) || defined(__amd64__) || defined( __x86_64__) | 
|  | static inline uint32_t aria_p3( uint32_t x ) | 
|  | { | 
|  | __asm( "bswap %0" : "=r" (x) : "0" (x) ); | 
|  | return( x ); | 
|  | } | 
|  | #define ARIA_P3 aria_p3 | 
|  | #endif /* x86 gnuc */ | 
|  | #endif /* MBEDTLS_HAVE_ASM && GNUC */ | 
|  | #if !defined(ARIA_P3) | 
|  | #define ARIA_P3(x) ARIA_P2( ARIA_P1 ( x ) ) | 
|  | #endif | 
|  |  | 
|  | /* | 
|  | * ARIA Affine Transform | 
|  | * (a, b, c, d) = state in/out | 
|  | * | 
|  | * If we denote the first byte of input by 0, ..., the last byte by f, | 
|  | * then inputs are: a = 0123, b = 4567, c = 89ab, d = cdef. | 
|  | * | 
|  | * Reading [1] 2.4 or [2] 2.4.3 in columns and performing simple | 
|  | * rearrangements on adjacent pairs, output is: | 
|  | * | 
|  | * a = 3210 + 4545 + 6767 + 88aa + 99bb + dccd + effe | 
|  | *   = 3210 + 4567 + 6745 + 89ab + 98ba + dcfe + efcd | 
|  | * b = 0101 + 2323 + 5476 + 8998 + baab + eecc + ffdd | 
|  | *   = 0123 + 2301 + 5476 + 89ab + ba98 + efcd + fedc | 
|  | * c = 0022 + 1133 + 4554 + 7667 + ab89 + dcdc + fefe | 
|  | *   = 0123 + 1032 + 4567 + 7654 + ab89 + dcfe + fedc | 
|  | * d = 1001 + 2332 + 6644 + 7755 + 9898 + baba + cdef | 
|  | *   = 1032 + 2301 + 6745 + 7654 + 98ba + ba98 + cdef | 
|  | * | 
|  | * Note: another presentation of the A transform can be found as the first | 
|  | * half of App. B.1 in [1] in terms of 4-byte operators P1, P2, P3 and P4. | 
|  | * The implementation below uses only P1 and P2 as they are sufficient. | 
|  | */ | 
|  | static inline void aria_a( uint32_t *a, uint32_t *b, | 
|  | uint32_t *c, uint32_t *d ) | 
|  | { | 
|  | uint32_t ta, tb, tc; | 
|  | ta  =  *b;                      // 4567 | 
|  | *b  =  *a;                      // 0123 | 
|  | *a  =  ARIA_P2( ta );           // 6745 | 
|  | tb  =  ARIA_P2( *d );           // efcd | 
|  | *d  =  ARIA_P1( *c );           // 98ba | 
|  | *c  =  ARIA_P1( tb );           // fedc | 
|  | ta  ^= *d;                      // 4567+98ba | 
|  | tc  =  ARIA_P2( *b );           // 2301 | 
|  | ta  =  ARIA_P1( ta ) ^ tc ^ *c; // 2301+5476+89ab+fedc | 
|  | tb  ^= ARIA_P2( *d );           // ba98+efcd | 
|  | tc  ^= ARIA_P1( *a );           // 2301+7654 | 
|  | *b  ^= ta ^ tb;                 // 0123+2301+5476+89ab+ba98+efcd+fedc OUT | 
|  | tb  =  ARIA_P2( tb ) ^ ta;      // 2301+5476+89ab+98ba+cdef+fedc | 
|  | *a  ^= ARIA_P1( tb );           // 3210+4567+6745+89ab+98ba+dcfe+efcd OUT | 
|  | ta  =  ARIA_P2( ta );           // 0123+7654+ab89+dcfe | 
|  | *d  ^= ARIA_P1( ta ) ^ tc;      // 1032+2301+6745+7654+98ba+ba98+cdef OUT | 
|  | tc  =  ARIA_P2( tc );           // 0123+5476 | 
|  | *c  ^= ARIA_P1( tc ) ^ ta;      // 0123+1032+4567+7654+ab89+dcfe+fedc OUT | 
|  | } | 
|  |  | 
|  | /* | 
|  | * ARIA Substitution Layer SL1 / SL2 | 
|  | * (a, b, c, d) = state in/out | 
|  | * (sa, sb, sc, sd) = 256 8-bit S-Boxes (see below) | 
|  | * | 
|  | * By passing sb1, sb2, is1, is2 as S-Boxes you get SL1 | 
|  | * By passing is1, is2, sb1, sb2 as S-Boxes you get SL2 | 
|  | */ | 
|  | static inline void aria_sl( uint32_t *a, uint32_t *b, | 
|  | uint32_t *c, uint32_t *d, | 
|  | const uint8_t sa[256], const uint8_t sb[256], | 
|  | const uint8_t sc[256], const uint8_t sd[256] ) | 
|  | { | 
|  | *a = ( (uint32_t) sa[ *a        & 0xFF]       ) ^ | 
|  | (((uint32_t) sb[(*a >>  8) & 0xFF]) <<  8) ^ | 
|  | (((uint32_t) sc[(*a >> 16) & 0xFF]) << 16) ^ | 
|  | (((uint32_t) sd[ *a >> 24        ]) << 24); | 
|  | *b = ( (uint32_t) sa[ *b        & 0xFF]       ) ^ | 
|  | (((uint32_t) sb[(*b >>  8) & 0xFF]) <<  8) ^ | 
|  | (((uint32_t) sc[(*b >> 16) & 0xFF]) << 16) ^ | 
|  | (((uint32_t) sd[ *b >> 24        ]) << 24); | 
|  | *c = ( (uint32_t) sa[ *c        & 0xFF]       ) ^ | 
|  | (((uint32_t) sb[(*c >>  8) & 0xFF]) <<  8) ^ | 
|  | (((uint32_t) sc[(*c >> 16) & 0xFF]) << 16) ^ | 
|  | (((uint32_t) sd[ *c >> 24        ]) << 24); | 
|  | *d = ( (uint32_t) sa[ *d        & 0xFF]       ) ^ | 
|  | (((uint32_t) sb[(*d >>  8) & 0xFF]) <<  8) ^ | 
|  | (((uint32_t) sc[(*d >> 16) & 0xFF]) << 16) ^ | 
|  | (((uint32_t) sd[ *d >> 24        ]) << 24); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * S-Boxes | 
|  | */ | 
|  | static const uint8_t aria_sb1[256] = | 
|  | { | 
|  | 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, | 
|  | 0xFE, 0xD7, 0xAB, 0x76, 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, | 
|  | 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, 0xB7, 0xFD, 0x93, 0x26, | 
|  | 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, | 
|  | 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, | 
|  | 0xEB, 0x27, 0xB2, 0x75, 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, | 
|  | 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, 0x53, 0xD1, 0x00, 0xED, | 
|  | 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, | 
|  | 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, | 
|  | 0x50, 0x3C, 0x9F, 0xA8, 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, | 
|  | 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, 0xCD, 0x0C, 0x13, 0xEC, | 
|  | 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, | 
|  | 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, | 
|  | 0xDE, 0x5E, 0x0B, 0xDB, 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, | 
|  | 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, 0xE7, 0xC8, 0x37, 0x6D, | 
|  | 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, | 
|  | 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, | 
|  | 0x4B, 0xBD, 0x8B, 0x8A, 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, | 
|  | 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, 0xE1, 0xF8, 0x98, 0x11, | 
|  | 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, | 
|  | 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, | 
|  | 0xB0, 0x54, 0xBB, 0x16 | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_sb2[256] = | 
|  | { | 
|  | 0xE2, 0x4E, 0x54, 0xFC, 0x94, 0xC2, 0x4A, 0xCC, 0x62, 0x0D, 0x6A, 0x46, | 
|  | 0x3C, 0x4D, 0x8B, 0xD1, 0x5E, 0xFA, 0x64, 0xCB, 0xB4, 0x97, 0xBE, 0x2B, | 
|  | 0xBC, 0x77, 0x2E, 0x03, 0xD3, 0x19, 0x59, 0xC1, 0x1D, 0x06, 0x41, 0x6B, | 
|  | 0x55, 0xF0, 0x99, 0x69, 0xEA, 0x9C, 0x18, 0xAE, 0x63, 0xDF, 0xE7, 0xBB, | 
|  | 0x00, 0x73, 0x66, 0xFB, 0x96, 0x4C, 0x85, 0xE4, 0x3A, 0x09, 0x45, 0xAA, | 
|  | 0x0F, 0xEE, 0x10, 0xEB, 0x2D, 0x7F, 0xF4, 0x29, 0xAC, 0xCF, 0xAD, 0x91, | 
|  | 0x8D, 0x78, 0xC8, 0x95, 0xF9, 0x2F, 0xCE, 0xCD, 0x08, 0x7A, 0x88, 0x38, | 
|  | 0x5C, 0x83, 0x2A, 0x28, 0x47, 0xDB, 0xB8, 0xC7, 0x93, 0xA4, 0x12, 0x53, | 
|  | 0xFF, 0x87, 0x0E, 0x31, 0x36, 0x21, 0x58, 0x48, 0x01, 0x8E, 0x37, 0x74, | 
|  | 0x32, 0xCA, 0xE9, 0xB1, 0xB7, 0xAB, 0x0C, 0xD7, 0xC4, 0x56, 0x42, 0x26, | 
|  | 0x07, 0x98, 0x60, 0xD9, 0xB6, 0xB9, 0x11, 0x40, 0xEC, 0x20, 0x8C, 0xBD, | 
|  | 0xA0, 0xC9, 0x84, 0x04, 0x49, 0x23, 0xF1, 0x4F, 0x50, 0x1F, 0x13, 0xDC, | 
|  | 0xD8, 0xC0, 0x9E, 0x57, 0xE3, 0xC3, 0x7B, 0x65, 0x3B, 0x02, 0x8F, 0x3E, | 
|  | 0xE8, 0x25, 0x92, 0xE5, 0x15, 0xDD, 0xFD, 0x17, 0xA9, 0xBF, 0xD4, 0x9A, | 
|  | 0x7E, 0xC5, 0x39, 0x67, 0xFE, 0x76, 0x9D, 0x43, 0xA7, 0xE1, 0xD0, 0xF5, | 
|  | 0x68, 0xF2, 0x1B, 0x34, 0x70, 0x05, 0xA3, 0x8A, 0xD5, 0x79, 0x86, 0xA8, | 
|  | 0x30, 0xC6, 0x51, 0x4B, 0x1E, 0xA6, 0x27, 0xF6, 0x35, 0xD2, 0x6E, 0x24, | 
|  | 0x16, 0x82, 0x5F, 0xDA, 0xE6, 0x75, 0xA2, 0xEF, 0x2C, 0xB2, 0x1C, 0x9F, | 
|  | 0x5D, 0x6F, 0x80, 0x0A, 0x72, 0x44, 0x9B, 0x6C, 0x90, 0x0B, 0x5B, 0x33, | 
|  | 0x7D, 0x5A, 0x52, 0xF3, 0x61, 0xA1, 0xF7, 0xB0, 0xD6, 0x3F, 0x7C, 0x6D, | 
|  | 0xED, 0x14, 0xE0, 0xA5, 0x3D, 0x22, 0xB3, 0xF8, 0x89, 0xDE, 0x71, 0x1A, | 
|  | 0xAF, 0xBA, 0xB5, 0x81 | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_is1[256] = | 
|  | { | 
|  | 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, | 
|  | 0x81, 0xF3, 0xD7, 0xFB, 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, | 
|  | 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, 0x54, 0x7B, 0x94, 0x32, | 
|  | 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, | 
|  | 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, | 
|  | 0x6D, 0x8B, 0xD1, 0x25, 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, | 
|  | 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, 0x6C, 0x70, 0x48, 0x50, | 
|  | 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, | 
|  | 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, | 
|  | 0xB8, 0xB3, 0x45, 0x06, 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, | 
|  | 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, 0x3A, 0x91, 0x11, 0x41, | 
|  | 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, | 
|  | 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, | 
|  | 0x1C, 0x75, 0xDF, 0x6E, 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, | 
|  | 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, 0xFC, 0x56, 0x3E, 0x4B, | 
|  | 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, | 
|  | 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, | 
|  | 0x27, 0x80, 0xEC, 0x5F, 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, | 
|  | 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, 0xA0, 0xE0, 0x3B, 0x4D, | 
|  | 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, | 
|  | 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, | 
|  | 0x55, 0x21, 0x0C, 0x7D | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_is2[256] = | 
|  | { | 
|  | 0x30, 0x68, 0x99, 0x1B, 0x87, 0xB9, 0x21, 0x78, 0x50, 0x39, 0xDB, 0xE1, | 
|  | 0x72, 0x09, 0x62, 0x3C, 0x3E, 0x7E, 0x5E, 0x8E, 0xF1, 0xA0, 0xCC, 0xA3, | 
|  | 0x2A, 0x1D, 0xFB, 0xB6, 0xD6, 0x20, 0xC4, 0x8D, 0x81, 0x65, 0xF5, 0x89, | 
|  | 0xCB, 0x9D, 0x77, 0xC6, 0x57, 0x43, 0x56, 0x17, 0xD4, 0x40, 0x1A, 0x4D, | 
|  | 0xC0, 0x63, 0x6C, 0xE3, 0xB7, 0xC8, 0x64, 0x6A, 0x53, 0xAA, 0x38, 0x98, | 
|  | 0x0C, 0xF4, 0x9B, 0xED, 0x7F, 0x22, 0x76, 0xAF, 0xDD, 0x3A, 0x0B, 0x58, | 
|  | 0x67, 0x88, 0x06, 0xC3, 0x35, 0x0D, 0x01, 0x8B, 0x8C, 0xC2, 0xE6, 0x5F, | 
|  | 0x02, 0x24, 0x75, 0x93, 0x66, 0x1E, 0xE5, 0xE2, 0x54, 0xD8, 0x10, 0xCE, | 
|  | 0x7A, 0xE8, 0x08, 0x2C, 0x12, 0x97, 0x32, 0xAB, 0xB4, 0x27, 0x0A, 0x23, | 
|  | 0xDF, 0xEF, 0xCA, 0xD9, 0xB8, 0xFA, 0xDC, 0x31, 0x6B, 0xD1, 0xAD, 0x19, | 
|  | 0x49, 0xBD, 0x51, 0x96, 0xEE, 0xE4, 0xA8, 0x41, 0xDA, 0xFF, 0xCD, 0x55, | 
|  | 0x86, 0x36, 0xBE, 0x61, 0x52, 0xF8, 0xBB, 0x0E, 0x82, 0x48, 0x69, 0x9A, | 
|  | 0xE0, 0x47, 0x9E, 0x5C, 0x04, 0x4B, 0x34, 0x15, 0x79, 0x26, 0xA7, 0xDE, | 
|  | 0x29, 0xAE, 0x92, 0xD7, 0x84, 0xE9, 0xD2, 0xBA, 0x5D, 0xF3, 0xC5, 0xB0, | 
|  | 0xBF, 0xA4, 0x3B, 0x71, 0x44, 0x46, 0x2B, 0xFC, 0xEB, 0x6F, 0xD5, 0xF6, | 
|  | 0x14, 0xFE, 0x7C, 0x70, 0x5A, 0x7D, 0xFD, 0x2F, 0x18, 0x83, 0x16, 0xA5, | 
|  | 0x91, 0x1F, 0x05, 0x95, 0x74, 0xA9, 0xC1, 0x5B, 0x4A, 0x85, 0x6D, 0x13, | 
|  | 0x07, 0x4F, 0x4E, 0x45, 0xB2, 0x0F, 0xC9, 0x1C, 0xA6, 0xBC, 0xEC, 0x73, | 
|  | 0x90, 0x7B, 0xCF, 0x59, 0x8F, 0xA1, 0xF9, 0x2D, 0xF2, 0xB1, 0x00, 0x94, | 
|  | 0x37, 0x9F, 0xD0, 0x2E, 0x9C, 0x6E, 0x28, 0x3F, 0x80, 0xF0, 0x3D, 0xD3, | 
|  | 0x25, 0x8A, 0xB5, 0xE7, 0x42, 0xB3, 0xC7, 0xEA, 0xF7, 0x4C, 0x11, 0x33, | 
|  | 0x03, 0xA2, 0xAC, 0x60 | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Helper for key schedule: r = FO( p, k ) ^ x | 
|  | */ | 
|  | static void aria_fo_xor( uint32_t r[4], const uint32_t p[4], | 
|  | const uint32_t k[4], const uint32_t x[4] ) | 
|  | { | 
|  | uint32_t a, b, c, d; | 
|  |  | 
|  | a = p[0] ^ k[0]; | 
|  | b = p[1] ^ k[1]; | 
|  | c = p[2] ^ k[2]; | 
|  | d = p[3] ^ k[3]; | 
|  |  | 
|  | aria_sl( &a, &b, &c, &d, aria_sb1, aria_sb2, aria_is1, aria_is2 ); | 
|  | aria_a( &a, &b, &c, &d ); | 
|  |  | 
|  | r[0] = a ^ x[0]; | 
|  | r[1] = b ^ x[1]; | 
|  | r[2] = c ^ x[2]; | 
|  | r[3] = d ^ x[3]; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Helper for key schedule: r = FE( p, k ) ^ x | 
|  | */ | 
|  | static void aria_fe_xor( uint32_t r[4], const uint32_t p[4], | 
|  | const uint32_t k[4], const uint32_t x[4] ) | 
|  | { | 
|  | uint32_t a, b, c, d; | 
|  |  | 
|  | a = p[0] ^ k[0]; | 
|  | b = p[1] ^ k[1]; | 
|  | c = p[2] ^ k[2]; | 
|  | d = p[3] ^ k[3]; | 
|  |  | 
|  | aria_sl( &a, &b, &c, &d, aria_is1, aria_is2, aria_sb1, aria_sb2 ); | 
|  | aria_a( &a, &b, &c, &d ); | 
|  |  | 
|  | r[0] = a ^ x[0]; | 
|  | r[1] = b ^ x[1]; | 
|  | r[2] = c ^ x[2]; | 
|  | r[3] = d ^ x[3]; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Big endian 128-bit rotation: r = a ^ (b <<< n), used only in key setup. | 
|  | * | 
|  | * We chose to store bytes into 32-bit words in little-endian format (see | 
|  | * GET/PUT_UINT32_LE) so we need to reverse bytes here. | 
|  | */ | 
|  | static void aria_rot128( uint32_t r[4], const uint32_t a[4], | 
|  | const uint32_t b[4], uint8_t n ) | 
|  | { | 
|  | uint8_t i, j; | 
|  | uint32_t t, u; | 
|  |  | 
|  | const uint8_t n1 = n % 32;              // bit offset | 
|  | const uint8_t n2 = n1 ? 32 - n1 : 0;    // reverse bit offset | 
|  |  | 
|  | j = ( n / 32 ) % 4;                     // initial word offset | 
|  | t = ARIA_P3( b[j] );                    // big endian | 
|  | for( i = 0; i < 4; i++ ) | 
|  | { | 
|  | j = ( j + 1 ) % 4;                  // get next word, big endian | 
|  | u = ARIA_P3( b[j] ); | 
|  | t <<= n1;                           // rotate | 
|  | t |= u >> n2; | 
|  | t = ARIA_P3( t );                   // back to little endian | 
|  | r[i] = a[i] ^ t;                    // store | 
|  | t = u;                              // move to next word | 
|  | } | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Set encryption key | 
|  | */ | 
|  | int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx, | 
|  | const unsigned char *key, unsigned int keybits ) | 
|  | { | 
|  | /* round constant masks */ | 
|  | const uint32_t rc[3][4] = | 
|  | { | 
|  | {   0xB7C17C51, 0x940A2227, 0xE8AB13FE, 0xE06E9AFA  }, | 
|  | {   0xCC4AB16D, 0x20C8219E, 0xD5B128FF, 0xB0E25DEF  }, | 
|  | {   0x1D3792DB, 0x70E92621, 0x75972403, 0x0EC9E804  } | 
|  | }; | 
|  |  | 
|  | int i; | 
|  | uint32_t w[4][4], *w2; | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( key != NULL ); | 
|  |  | 
|  | if( keybits != 128 && keybits != 192 && keybits != 256 ) | 
|  | return( MBEDTLS_ERR_ARIA_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* Copy key to W0 (and potential remainder to W1) */ | 
|  | GET_UINT32_LE( w[0][0], key,  0 ); | 
|  | GET_UINT32_LE( w[0][1], key,  4 ); | 
|  | GET_UINT32_LE( w[0][2], key,  8 ); | 
|  | GET_UINT32_LE( w[0][3], key, 12 ); | 
|  |  | 
|  | memset( w[1], 0, 16 ); | 
|  | if( keybits >= 192 ) | 
|  | { | 
|  | GET_UINT32_LE( w[1][0], key, 16 );  // 192 bit key | 
|  | GET_UINT32_LE( w[1][1], key, 20 ); | 
|  | } | 
|  | if( keybits == 256 ) | 
|  | { | 
|  | GET_UINT32_LE( w[1][2], key, 24 );  // 256 bit key | 
|  | GET_UINT32_LE( w[1][3], key, 28 ); | 
|  | } | 
|  |  | 
|  | i = ( keybits - 128 ) >> 6;             // index: 0, 1, 2 | 
|  | ctx->nr = 12 + 2 * i;                   // no. rounds: 12, 14, 16 | 
|  |  | 
|  | aria_fo_xor( w[1], w[0], rc[i], w[1] ); // W1 = FO(W0, CK1) ^ KR | 
|  | i = i < 2 ? i + 1 : 0; | 
|  | aria_fe_xor( w[2], w[1], rc[i], w[0] ); // W2 = FE(W1, CK2) ^ W0 | 
|  | i = i < 2 ? i + 1 : 0; | 
|  | aria_fo_xor( w[3], w[2], rc[i], w[1] ); // W3 = FO(W2, CK3) ^ W1 | 
|  |  | 
|  | for( i = 0; i < 4; i++ )                // create round keys | 
|  | { | 
|  | w2 = w[(i + 1) & 3]; | 
|  | aria_rot128( ctx->rk[i     ], w[i], w2, 128 - 19 ); | 
|  | aria_rot128( ctx->rk[i +  4], w[i], w2, 128 - 31 ); | 
|  | aria_rot128( ctx->rk[i +  8], w[i], w2,       61 ); | 
|  | aria_rot128( ctx->rk[i + 12], w[i], w2,       31 ); | 
|  | } | 
|  | aria_rot128( ctx->rk[16], w[0], w[1], 19 ); | 
|  |  | 
|  | /* w holds enough info to reconstruct the round keys */ | 
|  | mbedtls_platform_zeroize( w, sizeof( w ) ); | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Set decryption key | 
|  | */ | 
|  | int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx, | 
|  | const unsigned char *key, unsigned int keybits ) | 
|  | { | 
|  | int i, j, k, ret; | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( key != NULL ); | 
|  |  | 
|  | ret = mbedtls_aria_setkey_enc( ctx, key, keybits ); | 
|  | if( ret != 0 ) | 
|  | return( ret ); | 
|  |  | 
|  | /* flip the order of round keys */ | 
|  | for( i = 0, j = ctx->nr; i < j; i++, j-- ) | 
|  | { | 
|  | for( k = 0; k < 4; k++ ) | 
|  | { | 
|  | uint32_t t = ctx->rk[i][k]; | 
|  | ctx->rk[i][k] = ctx->rk[j][k]; | 
|  | ctx->rk[j][k] = t; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* apply affine transform to middle keys */ | 
|  | for( i = 1; i < ctx->nr; i++ ) | 
|  | { | 
|  | aria_a( &ctx->rk[i][0], &ctx->rk[i][1], | 
|  | &ctx->rk[i][2], &ctx->rk[i][3] ); | 
|  | } | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Encrypt a block | 
|  | */ | 
|  | int mbedtls_aria_crypt_ecb( mbedtls_aria_context *ctx, | 
|  | const unsigned char input[MBEDTLS_ARIA_BLOCKSIZE], | 
|  | unsigned char output[MBEDTLS_ARIA_BLOCKSIZE] ) | 
|  | { | 
|  | int i; | 
|  |  | 
|  | uint32_t a, b, c, d; | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( input != NULL ); | 
|  | ARIA_VALIDATE_RET( output != NULL ); | 
|  |  | 
|  | GET_UINT32_LE( a, input,  0 ); | 
|  | GET_UINT32_LE( b, input,  4 ); | 
|  | GET_UINT32_LE( c, input,  8 ); | 
|  | GET_UINT32_LE( d, input, 12 ); | 
|  |  | 
|  | i = 0; | 
|  | while( 1 ) | 
|  | { | 
|  | a ^= ctx->rk[i][0]; | 
|  | b ^= ctx->rk[i][1]; | 
|  | c ^= ctx->rk[i][2]; | 
|  | d ^= ctx->rk[i][3]; | 
|  | i++; | 
|  |  | 
|  | aria_sl( &a, &b, &c, &d, aria_sb1, aria_sb2, aria_is1, aria_is2 ); | 
|  | aria_a( &a, &b, &c, &d ); | 
|  |  | 
|  | a ^= ctx->rk[i][0]; | 
|  | b ^= ctx->rk[i][1]; | 
|  | c ^= ctx->rk[i][2]; | 
|  | d ^= ctx->rk[i][3]; | 
|  | i++; | 
|  |  | 
|  | aria_sl( &a, &b, &c, &d, aria_is1, aria_is2, aria_sb1, aria_sb2 ); | 
|  | if( i >= ctx->nr ) | 
|  | break; | 
|  | aria_a( &a, &b, &c, &d ); | 
|  | } | 
|  |  | 
|  | /* final key mixing */ | 
|  | a ^= ctx->rk[i][0]; | 
|  | b ^= ctx->rk[i][1]; | 
|  | c ^= ctx->rk[i][2]; | 
|  | d ^= ctx->rk[i][3]; | 
|  |  | 
|  | PUT_UINT32_LE( a, output,  0 ); | 
|  | PUT_UINT32_LE( b, output,  4 ); | 
|  | PUT_UINT32_LE( c, output,  8 ); | 
|  | PUT_UINT32_LE( d, output, 12 ); | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  |  | 
|  | /* Initialize context */ | 
|  | void mbedtls_aria_init( mbedtls_aria_context *ctx ) | 
|  | { | 
|  | ARIA_VALIDATE( ctx != NULL ); | 
|  | memset( ctx, 0, sizeof( mbedtls_aria_context ) ); | 
|  | } | 
|  |  | 
|  | /* Clear context */ | 
|  | void mbedtls_aria_free( mbedtls_aria_context *ctx ) | 
|  | { | 
|  | if( ctx == NULL ) | 
|  | return; | 
|  |  | 
|  | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_aria_context ) ); | 
|  | } | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CBC) | 
|  | /* | 
|  | * ARIA-CBC buffer encryption/decryption | 
|  | */ | 
|  | int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx, | 
|  | int mode, | 
|  | size_t length, | 
|  | unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE], | 
|  | const unsigned char *input, | 
|  | unsigned char *output ) | 
|  | { | 
|  | int i; | 
|  | unsigned char temp[MBEDTLS_ARIA_BLOCKSIZE]; | 
|  |  | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( mode == MBEDTLS_ARIA_ENCRYPT || | 
|  | mode == MBEDTLS_ARIA_DECRYPT ); | 
|  | ARIA_VALIDATE_RET( length == 0 || input  != NULL ); | 
|  | ARIA_VALIDATE_RET( length == 0 || output != NULL ); | 
|  | ARIA_VALIDATE_RET( iv != NULL ); | 
|  |  | 
|  | if( length % MBEDTLS_ARIA_BLOCKSIZE ) | 
|  | return( MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH ); | 
|  |  | 
|  | if( mode == MBEDTLS_ARIA_DECRYPT ) | 
|  | { | 
|  | while( length > 0 ) | 
|  | { | 
|  | memcpy( temp, input, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  | mbedtls_aria_crypt_ecb( ctx, input, output ); | 
|  |  | 
|  | for( i = 0; i < MBEDTLS_ARIA_BLOCKSIZE; i++ ) | 
|  | output[i] = (unsigned char)( output[i] ^ iv[i] ); | 
|  |  | 
|  | memcpy( iv, temp, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  |  | 
|  | input  += MBEDTLS_ARIA_BLOCKSIZE; | 
|  | output += MBEDTLS_ARIA_BLOCKSIZE; | 
|  | length -= MBEDTLS_ARIA_BLOCKSIZE; | 
|  | } | 
|  | } | 
|  | else | 
|  | { | 
|  | while( length > 0 ) | 
|  | { | 
|  | for( i = 0; i < MBEDTLS_ARIA_BLOCKSIZE; i++ ) | 
|  | output[i] = (unsigned char)( input[i] ^ iv[i] ); | 
|  |  | 
|  | mbedtls_aria_crypt_ecb( ctx, output, output ); | 
|  | memcpy( iv, output, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  |  | 
|  | input  += MBEDTLS_ARIA_BLOCKSIZE; | 
|  | output += MBEDTLS_ARIA_BLOCKSIZE; | 
|  | length -= MBEDTLS_ARIA_BLOCKSIZE; | 
|  | } | 
|  | } | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CFB) | 
|  | /* | 
|  | * ARIA-CFB128 buffer encryption/decryption | 
|  | */ | 
|  | int mbedtls_aria_crypt_cfb128( mbedtls_aria_context *ctx, | 
|  | int mode, | 
|  | size_t length, | 
|  | size_t *iv_off, | 
|  | unsigned char iv[MBEDTLS_ARIA_BLOCKSIZE], | 
|  | const unsigned char *input, | 
|  | unsigned char *output ) | 
|  | { | 
|  | unsigned char c; | 
|  | size_t n; | 
|  |  | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( mode == MBEDTLS_ARIA_ENCRYPT || | 
|  | mode == MBEDTLS_ARIA_DECRYPT ); | 
|  | ARIA_VALIDATE_RET( length == 0 || input  != NULL ); | 
|  | ARIA_VALIDATE_RET( length == 0 || output != NULL ); | 
|  | ARIA_VALIDATE_RET( iv != NULL ); | 
|  | ARIA_VALIDATE_RET( iv_off != NULL ); | 
|  |  | 
|  | n = *iv_off; | 
|  |  | 
|  | /* An overly large value of n can lead to an unlimited | 
|  | * buffer overflow. Therefore, guard against this | 
|  | * outside of parameter validation. */ | 
|  | if( n >= MBEDTLS_ARIA_BLOCKSIZE ) | 
|  | return( MBEDTLS_ERR_ARIA_BAD_INPUT_DATA ); | 
|  |  | 
|  | if( mode == MBEDTLS_ARIA_DECRYPT ) | 
|  | { | 
|  | while( length-- ) | 
|  | { | 
|  | if( n == 0 ) | 
|  | mbedtls_aria_crypt_ecb( ctx, iv, iv ); | 
|  |  | 
|  | c = *input++; | 
|  | *output++ = c ^ iv[n]; | 
|  | iv[n] = c; | 
|  |  | 
|  | n = ( n + 1 ) & 0x0F; | 
|  | } | 
|  | } | 
|  | else | 
|  | { | 
|  | while( length-- ) | 
|  | { | 
|  | if( n == 0 ) | 
|  | mbedtls_aria_crypt_ecb( ctx, iv, iv ); | 
|  |  | 
|  | iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); | 
|  |  | 
|  | n = ( n + 1 ) & 0x0F; | 
|  | } | 
|  | } | 
|  |  | 
|  | *iv_off = n; | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CTR) | 
|  | /* | 
|  | * ARIA-CTR buffer encryption/decryption | 
|  | */ | 
|  | int mbedtls_aria_crypt_ctr( mbedtls_aria_context *ctx, | 
|  | size_t length, | 
|  | size_t *nc_off, | 
|  | unsigned char nonce_counter[MBEDTLS_ARIA_BLOCKSIZE], | 
|  | unsigned char stream_block[MBEDTLS_ARIA_BLOCKSIZE], | 
|  | const unsigned char *input, | 
|  | unsigned char *output ) | 
|  | { | 
|  | int c, i; | 
|  | size_t n; | 
|  |  | 
|  | ARIA_VALIDATE_RET( ctx != NULL ); | 
|  | ARIA_VALIDATE_RET( length == 0 || input  != NULL ); | 
|  | ARIA_VALIDATE_RET( length == 0 || output != NULL ); | 
|  | ARIA_VALIDATE_RET( nonce_counter != NULL ); | 
|  | ARIA_VALIDATE_RET( stream_block  != NULL ); | 
|  | ARIA_VALIDATE_RET( nc_off != NULL ); | 
|  |  | 
|  | n = *nc_off; | 
|  | /* An overly large value of n can lead to an unlimited | 
|  | * buffer overflow. Therefore, guard against this | 
|  | * outside of parameter validation. */ | 
|  | if( n >= MBEDTLS_ARIA_BLOCKSIZE ) | 
|  | return( MBEDTLS_ERR_ARIA_BAD_INPUT_DATA ); | 
|  |  | 
|  | while( length-- ) | 
|  | { | 
|  | if( n == 0 ) { | 
|  | mbedtls_aria_crypt_ecb( ctx, nonce_counter, | 
|  | stream_block ); | 
|  |  | 
|  | for( i = MBEDTLS_ARIA_BLOCKSIZE; i > 0; i-- ) | 
|  | if( ++nonce_counter[i - 1] != 0 ) | 
|  | break; | 
|  | } | 
|  | c = *input++; | 
|  | *output++ = (unsigned char)( c ^ stream_block[n] ); | 
|  |  | 
|  | n = ( n + 1 ) & 0x0F; | 
|  | } | 
|  |  | 
|  | *nc_off = n; | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | 
|  | #endif /* !MBEDTLS_ARIA_ALT */ | 
|  |  | 
|  | #if defined(MBEDTLS_SELF_TEST) | 
|  |  | 
|  | /* | 
|  | * Basic ARIA ECB test vectors from RFC 5794 | 
|  | */ | 
|  | static const uint8_t aria_test1_ecb_key[32] =           // test key | 
|  | { | 
|  | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,     // 128 bit | 
|  | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | 
|  | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,     // 192 bit | 
|  | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F      // 256 bit | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_test1_ecb_pt[MBEDTLS_ARIA_BLOCKSIZE] =            // plaintext | 
|  | { | 
|  | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,     // same for all | 
|  | 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF      // key sizes | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_test1_ecb_ct[3][MBEDTLS_ARIA_BLOCKSIZE] =         // ciphertext | 
|  | { | 
|  | { 0xD7, 0x18, 0xFB, 0xD6, 0xAB, 0x64, 0x4C, 0x73,   // 128 bit | 
|  | 0x9D, 0xA9, 0x5F, 0x3B, 0xE6, 0x45, 0x17, 0x78 }, | 
|  | { 0x26, 0x44, 0x9C, 0x18, 0x05, 0xDB, 0xE7, 0xAA,   // 192 bit | 
|  | 0x25, 0xA4, 0x68, 0xCE, 0x26, 0x3A, 0x9E, 0x79 }, | 
|  | { 0xF9, 0x2B, 0xD7, 0xC7, 0x9F, 0xB7, 0x2E, 0x2F,   // 256 bit | 
|  | 0x2B, 0x8F, 0x80, 0xC1, 0x97, 0x2D, 0x24, 0xFC } | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Mode tests from "Test Vectors for ARIA"  Version 1.0 | 
|  | * http://210.104.33.10/ARIA/doc/ARIA-testvector-e.pdf | 
|  | */ | 
|  | #if (defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB) || \ | 
|  | defined(MBEDTLS_CIPHER_MODE_CTR)) | 
|  | static const uint8_t aria_test2_key[32] = | 
|  | { | 
|  | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,     // 128 bit | 
|  | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, | 
|  | 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,     // 192 bit | 
|  | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff      // 256 bit | 
|  | }; | 
|  |  | 
|  | static const uint8_t aria_test2_pt[48] = | 
|  | { | 
|  | 0x11, 0x11, 0x11, 0x11, 0xaa, 0xaa, 0xaa, 0xaa,     // same for all | 
|  | 0x11, 0x11, 0x11, 0x11, 0xbb, 0xbb, 0xbb, 0xbb, | 
|  | 0x11, 0x11, 0x11, 0x11, 0xcc, 0xcc, 0xcc, 0xcc, | 
|  | 0x11, 0x11, 0x11, 0x11, 0xdd, 0xdd, 0xdd, 0xdd, | 
|  | 0x22, 0x22, 0x22, 0x22, 0xaa, 0xaa, 0xaa, 0xaa, | 
|  | 0x22, 0x22, 0x22, 0x22, 0xbb, 0xbb, 0xbb, 0xbb, | 
|  | }; | 
|  | #endif | 
|  |  | 
|  | #if (defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB)) | 
|  | static const uint8_t aria_test2_iv[MBEDTLS_ARIA_BLOCKSIZE] = | 
|  | { | 
|  | 0x0f, 0x1e, 0x2d, 0x3c, 0x4b, 0x5a, 0x69, 0x78,     // same for CBC, CFB | 
|  | 0x87, 0x96, 0xa5, 0xb4, 0xc3, 0xd2, 0xe1, 0xf0      // CTR has zero IV | 
|  | }; | 
|  | #endif | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CBC) | 
|  | static const uint8_t aria_test2_cbc_ct[3][48] =         // CBC ciphertext | 
|  | { | 
|  | { 0x49, 0xd6, 0x18, 0x60, 0xb1, 0x49, 0x09, 0x10,   // 128-bit key | 
|  | 0x9c, 0xef, 0x0d, 0x22, 0xa9, 0x26, 0x81, 0x34, | 
|  | 0xfa, 0xdf, 0x9f, 0xb2, 0x31, 0x51, 0xe9, 0x64, | 
|  | 0x5f, 0xba, 0x75, 0x01, 0x8b, 0xdb, 0x15, 0x38, | 
|  | 0xb5, 0x33, 0x34, 0x63, 0x4b, 0xbf, 0x7d, 0x4c, | 
|  | 0xd4, 0xb5, 0x37, 0x70, 0x33, 0x06, 0x0c, 0x15 }, | 
|  | { 0xaf, 0xe6, 0xcf, 0x23, 0x97, 0x4b, 0x53, 0x3c,   // 192-bit key | 
|  | 0x67, 0x2a, 0x82, 0x62, 0x64, 0xea, 0x78, 0x5f, | 
|  | 0x4e, 0x4f, 0x7f, 0x78, 0x0d, 0xc7, 0xf3, 0xf1, | 
|  | 0xe0, 0x96, 0x2b, 0x80, 0x90, 0x23, 0x86, 0xd5, | 
|  | 0x14, 0xe9, 0xc3, 0xe7, 0x72, 0x59, 0xde, 0x92, | 
|  | 0xdd, 0x11, 0x02, 0xff, 0xab, 0x08, 0x6c, 0x1e }, | 
|  | { 0x52, 0x3a, 0x8a, 0x80, 0x6a, 0xe6, 0x21, 0xf1,   // 256-bit key | 
|  | 0x55, 0xfd, 0xd2, 0x8d, 0xbc, 0x34, 0xe1, 0xab, | 
|  | 0x7b, 0x9b, 0x42, 0x43, 0x2a, 0xd8, 0xb2, 0xef, | 
|  | 0xb9, 0x6e, 0x23, 0xb1, 0x3f, 0x0a, 0x6e, 0x52, | 
|  | 0xf3, 0x61, 0x85, 0xd5, 0x0a, 0xd0, 0x02, 0xc5, | 
|  | 0xf6, 0x01, 0xbe, 0xe5, 0x49, 0x3f, 0x11, 0x8b } | 
|  | }; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CFB) | 
|  | static const uint8_t aria_test2_cfb_ct[3][48] =         // CFB ciphertext | 
|  | { | 
|  | { 0x37, 0x20, 0xe5, 0x3b, 0xa7, 0xd6, 0x15, 0x38,   // 128-bit key | 
|  | 0x34, 0x06, 0xb0, 0x9f, 0x0a, 0x05, 0xa2, 0x00, | 
|  | 0xc0, 0x7c, 0x21, 0xe6, 0x37, 0x0f, 0x41, 0x3a, | 
|  | 0x5d, 0x13, 0x25, 0x00, 0xa6, 0x82, 0x85, 0x01, | 
|  | 0x7c, 0x61, 0xb4, 0x34, 0xc7, 0xb7, 0xca, 0x96, | 
|  | 0x85, 0xa5, 0x10, 0x71, 0x86, 0x1e, 0x4d, 0x4b }, | 
|  | { 0x41, 0x71, 0xf7, 0x19, 0x2b, 0xf4, 0x49, 0x54,   // 192-bit key | 
|  | 0x94, 0xd2, 0x73, 0x61, 0x29, 0x64, 0x0f, 0x5c, | 
|  | 0x4d, 0x87, 0xa9, 0xa2, 0x13, 0x66, 0x4c, 0x94, | 
|  | 0x48, 0x47, 0x7c, 0x6e, 0xcc, 0x20, 0x13, 0x59, | 
|  | 0x8d, 0x97, 0x66, 0x95, 0x2d, 0xd8, 0xc3, 0x86, | 
|  | 0x8f, 0x17, 0xe3, 0x6e, 0xf6, 0x6f, 0xd8, 0x4b }, | 
|  | { 0x26, 0x83, 0x47, 0x05, 0xb0, 0xf2, 0xc0, 0xe2,   // 256-bit key | 
|  | 0x58, 0x8d, 0x4a, 0x7f, 0x09, 0x00, 0x96, 0x35, | 
|  | 0xf2, 0x8b, 0xb9, 0x3d, 0x8c, 0x31, 0xf8, 0x70, | 
|  | 0xec, 0x1e, 0x0b, 0xdb, 0x08, 0x2b, 0x66, 0xfa, | 
|  | 0x40, 0x2d, 0xd9, 0xc2, 0x02, 0xbe, 0x30, 0x0c, | 
|  | 0x45, 0x17, 0xd1, 0x96, 0xb1, 0x4d, 0x4c, 0xe1 } | 
|  | }; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CTR) | 
|  | static const uint8_t aria_test2_ctr_ct[3][48] =         // CTR ciphertext | 
|  | { | 
|  | { 0xac, 0x5d, 0x7d, 0xe8, 0x05, 0xa0, 0xbf, 0x1c,   // 128-bit key | 
|  | 0x57, 0xc8, 0x54, 0x50, 0x1a, 0xf6, 0x0f, 0xa1, | 
|  | 0x14, 0x97, 0xe2, 0xa3, 0x45, 0x19, 0xde, 0xa1, | 
|  | 0x56, 0x9e, 0x91, 0xe5, 0xb5, 0xcc, 0xae, 0x2f, | 
|  | 0xf3, 0xbf, 0xa1, 0xbf, 0x97, 0x5f, 0x45, 0x71, | 
|  | 0xf4, 0x8b, 0xe1, 0x91, 0x61, 0x35, 0x46, 0xc3 }, | 
|  | { 0x08, 0x62, 0x5c, 0xa8, 0xfe, 0x56, 0x9c, 0x19,   // 192-bit key | 
|  | 0xba, 0x7a, 0xf3, 0x76, 0x0a, 0x6e, 0xd1, 0xce, | 
|  | 0xf4, 0xd1, 0x99, 0x26, 0x3e, 0x99, 0x9d, 0xde, | 
|  | 0x14, 0x08, 0x2d, 0xbb, 0xa7, 0x56, 0x0b, 0x79, | 
|  | 0xa4, 0xc6, 0xb4, 0x56, 0xb8, 0x70, 0x7d, 0xce, | 
|  | 0x75, 0x1f, 0x98, 0x54, 0xf1, 0x88, 0x93, 0xdf }, | 
|  | { 0x30, 0x02, 0x6c, 0x32, 0x96, 0x66, 0x14, 0x17,   // 256-bit key | 
|  | 0x21, 0x17, 0x8b, 0x99, 0xc0, 0xa1, 0xf1, 0xb2, | 
|  | 0xf0, 0x69, 0x40, 0x25, 0x3f, 0x7b, 0x30, 0x89, | 
|  | 0xe2, 0xa3, 0x0e, 0xa8, 0x6a, 0xa3, 0xc8, 0x8f, | 
|  | 0x59, 0x40, 0xf0, 0x5a, 0xd7, 0xee, 0x41, 0xd7, | 
|  | 0x13, 0x47, 0xbb, 0x72, 0x61, 0xe3, 0x48, 0xf1 } | 
|  | }; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | 
|  |  | 
|  | #define ARIA_SELF_TEST_IF_FAIL              \ | 
|  | {                                   \ | 
|  | if( verbose )                   \ | 
|  | mbedtls_printf( "failed\n" );       \ | 
|  | return( 1 );                    \ | 
|  | } else {                            \ | 
|  | if( verbose )                   \ | 
|  | mbedtls_printf( "passed\n" );       \ | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Checkup routine | 
|  | */ | 
|  | int mbedtls_aria_self_test( int verbose ) | 
|  | { | 
|  | int i; | 
|  | uint8_t blk[MBEDTLS_ARIA_BLOCKSIZE]; | 
|  | mbedtls_aria_context ctx; | 
|  |  | 
|  | #if (defined(MBEDTLS_CIPHER_MODE_CFB) || defined(MBEDTLS_CIPHER_MODE_CTR)) | 
|  | size_t j; | 
|  | #endif | 
|  |  | 
|  | #if (defined(MBEDTLS_CIPHER_MODE_CBC) || \ | 
|  | defined(MBEDTLS_CIPHER_MODE_CFB) || \ | 
|  | defined(MBEDTLS_CIPHER_MODE_CTR)) | 
|  | uint8_t buf[48], iv[MBEDTLS_ARIA_BLOCKSIZE]; | 
|  | #endif | 
|  |  | 
|  | /* | 
|  | * Test set 1 | 
|  | */ | 
|  | for( i = 0; i < 3; i++ ) | 
|  | { | 
|  | /* test ECB encryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-ECB-%d (enc): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test1_ecb_key, 128 + 64 * i ); | 
|  | mbedtls_aria_crypt_ecb( &ctx, aria_test1_ecb_pt, blk ); | 
|  | if( memcmp( blk, aria_test1_ecb_ct[i], MBEDTLS_ARIA_BLOCKSIZE ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  |  | 
|  | /* test ECB decryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-ECB-%d (dec): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_dec( &ctx, aria_test1_ecb_key, 128 + 64 * i ); | 
|  | mbedtls_aria_crypt_ecb( &ctx, aria_test1_ecb_ct[i], blk ); | 
|  | if( memcmp( blk, aria_test1_ecb_pt, MBEDTLS_ARIA_BLOCKSIZE ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  | } | 
|  | if( verbose ) | 
|  | mbedtls_printf( "\n" ); | 
|  |  | 
|  | /* | 
|  | * Test set 2 | 
|  | */ | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CBC) | 
|  | for( i = 0; i < 3; i++ ) | 
|  | { | 
|  | /* Test CBC encryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CBC-%d (enc): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memcpy( iv, aria_test2_iv, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  | memset( buf, 0x55, sizeof( buf ) ); | 
|  | mbedtls_aria_crypt_cbc( &ctx, MBEDTLS_ARIA_ENCRYPT, 48, iv, | 
|  | aria_test2_pt, buf ); | 
|  | if( memcmp( buf, aria_test2_cbc_ct[i], 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  |  | 
|  | /* Test CBC decryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CBC-%d (dec): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_dec( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memcpy( iv, aria_test2_iv, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  | memset( buf, 0xAA, sizeof( buf ) ); | 
|  | mbedtls_aria_crypt_cbc( &ctx, MBEDTLS_ARIA_DECRYPT, 48, iv, | 
|  | aria_test2_cbc_ct[i], buf ); | 
|  | if( memcmp( buf, aria_test2_pt, 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  | } | 
|  | if( verbose ) | 
|  | mbedtls_printf( "\n" ); | 
|  |  | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CFB) | 
|  | for( i = 0; i < 3; i++ ) | 
|  | { | 
|  | /* Test CFB encryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CFB-%d (enc): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memcpy( iv, aria_test2_iv, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  | memset( buf, 0x55, sizeof( buf ) ); | 
|  | j = 0; | 
|  | mbedtls_aria_crypt_cfb128( &ctx, MBEDTLS_ARIA_ENCRYPT, 48, &j, iv, | 
|  | aria_test2_pt, buf ); | 
|  | if( memcmp( buf, aria_test2_cfb_ct[i], 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  |  | 
|  | /* Test CFB decryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CFB-%d (dec): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memcpy( iv, aria_test2_iv, MBEDTLS_ARIA_BLOCKSIZE ); | 
|  | memset( buf, 0xAA, sizeof( buf ) ); | 
|  | j = 0; | 
|  | mbedtls_aria_crypt_cfb128( &ctx, MBEDTLS_ARIA_DECRYPT, 48, &j, | 
|  | iv, aria_test2_cfb_ct[i], buf ); | 
|  | if( memcmp( buf, aria_test2_pt, 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  | } | 
|  | if( verbose ) | 
|  | mbedtls_printf( "\n" ); | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CTR) | 
|  | for( i = 0; i < 3; i++ ) | 
|  | { | 
|  | /* Test CTR encryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CTR-%d (enc): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memset( iv, 0, MBEDTLS_ARIA_BLOCKSIZE );                    // IV = 0 | 
|  | memset( buf, 0x55, sizeof( buf ) ); | 
|  | j = 0; | 
|  | mbedtls_aria_crypt_ctr( &ctx, 48, &j, iv, blk, | 
|  | aria_test2_pt, buf ); | 
|  | if( memcmp( buf, aria_test2_ctr_ct[i], 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  |  | 
|  | /* Test CTR decryption */ | 
|  | if( verbose ) | 
|  | mbedtls_printf( "  ARIA-CTR-%d (dec): ", 128 + 64 * i ); | 
|  | mbedtls_aria_setkey_enc( &ctx, aria_test2_key, 128 + 64 * i ); | 
|  | memset( iv, 0, MBEDTLS_ARIA_BLOCKSIZE );                    // IV = 0 | 
|  | memset( buf, 0xAA, sizeof( buf ) ); | 
|  | j = 0; | 
|  | mbedtls_aria_crypt_ctr( &ctx, 48, &j, iv, blk, | 
|  | aria_test2_ctr_ct[i], buf ); | 
|  | if( memcmp( buf, aria_test2_pt, 48 ) != 0 ) | 
|  | ARIA_SELF_TEST_IF_FAIL; | 
|  | } | 
|  | if( verbose ) | 
|  | mbedtls_printf( "\n" ); | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | 
|  |  | 
|  | return( 0 ); | 
|  | } | 
|  |  | 
|  | #endif /* MBEDTLS_SELF_TEST */ | 
|  |  | 
|  | #endif /* MBEDTLS_ARIA_C */ |