Switch to the new code style
Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/pem.c b/library/pem.c
index cb1c82b..3b9a3e9 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -35,151 +35,170 @@
#include "mbedtls/platform.h"
#if defined(MBEDTLS_PEM_PARSE_C)
-void mbedtls_pem_init( mbedtls_pem_context *ctx )
+void mbedtls_pem_init(mbedtls_pem_context *ctx)
{
- memset( ctx, 0, sizeof( mbedtls_pem_context ) );
+ memset(ctx, 0, sizeof(mbedtls_pem_context));
}
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
- ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
+ (defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C))
/*
* Read a 16-byte hex string and convert it to binary
*/
-static int pem_get_iv( const unsigned char *s, unsigned char *iv,
- size_t iv_len )
+static int pem_get_iv(const unsigned char *s, unsigned char *iv,
+ size_t iv_len)
{
size_t i, j, k;
- memset( iv, 0, iv_len );
+ memset(iv, 0, iv_len);
- for( i = 0; i < iv_len * 2; i++, s++ )
- {
- if( *s >= '0' && *s <= '9' ) j = *s - '0'; else
- if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else
- if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else
- return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
+ for (i = 0; i < iv_len * 2; i++, s++) {
+ if (*s >= '0' && *s <= '9') {
+ j = *s - '0';
+ } else
+ if (*s >= 'A' && *s <= 'F') {
+ j = *s - '7';
+ } else
+ if (*s >= 'a' && *s <= 'f') {
+ j = *s - 'W';
+ } else {
+ return MBEDTLS_ERR_PEM_INVALID_ENC_IV;
+ }
- k = ( ( i & 1 ) != 0 ) ? j : j << 4;
+ k = ((i & 1) != 0) ? j : j << 4;
- iv[i >> 1] = (unsigned char)( iv[i >> 1] | k );
+ iv[i >> 1] = (unsigned char) (iv[i >> 1] | k);
}
- return( 0 );
+ return 0;
}
-static int pem_pbkdf1( unsigned char *key, size_t keylen,
- unsigned char *iv,
- const unsigned char *pwd, size_t pwdlen )
+static int pem_pbkdf1(unsigned char *key, size_t keylen,
+ unsigned char *iv,
+ const unsigned char *pwd, size_t pwdlen)
{
mbedtls_md5_context md5_ctx;
unsigned char md5sum[16];
size_t use_len;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_md5_init( &md5_ctx );
+ mbedtls_md5_init(&md5_ctx);
/*
* key[ 0..15] = MD5(pwd || IV)
*/
- if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
+ if ((ret = mbedtls_md5_starts_ret(&md5_ctx)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_update_ret(&md5_ctx, pwd, pwdlen)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_update_ret(&md5_ctx, iv, 8)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
- goto exit;
-
- if( keylen <= 16 )
- {
- memcpy( key, md5sum, keylen );
+ }
+ if ((ret = mbedtls_md5_finish_ret(&md5_ctx, md5sum)) != 0) {
goto exit;
}
- memcpy( key, md5sum, 16 );
+ if (keylen <= 16) {
+ memcpy(key, md5sum, keylen);
+ goto exit;
+ }
+
+ memcpy(key, md5sum, 16);
/*
* key[16..23] = MD5(key[ 0..15] || pwd || IV])
*/
- if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
+ if ((ret = mbedtls_md5_starts_ret(&md5_ctx)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_update_ret( &md5_ctx, md5sum, 16 ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_update_ret(&md5_ctx, md5sum, 16)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_update_ret(&md5_ctx, pwd, pwdlen)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_update_ret(&md5_ctx, iv, 8)) != 0) {
goto exit;
- if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
+ }
+ if ((ret = mbedtls_md5_finish_ret(&md5_ctx, md5sum)) != 0) {
goto exit;
+ }
use_len = 16;
- if( keylen < 32 )
+ if (keylen < 32) {
use_len = keylen - 16;
+ }
- memcpy( key + 16, md5sum, use_len );
+ memcpy(key + 16, md5sum, use_len);
exit:
- mbedtls_md5_free( &md5_ctx );
- mbedtls_platform_zeroize( md5sum, 16 );
+ mbedtls_md5_free(&md5_ctx);
+ mbedtls_platform_zeroize(md5sum, 16);
- return( ret );
+ return ret;
}
#if defined(MBEDTLS_DES_C)
/*
* Decrypt with DES-CBC, using PBKDF1 for key derivation
*/
-static int pem_des_decrypt( unsigned char des_iv[8],
- unsigned char *buf, size_t buflen,
- const unsigned char *pwd, size_t pwdlen )
+static int pem_des_decrypt(unsigned char des_iv[8],
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen)
{
mbedtls_des_context des_ctx;
unsigned char des_key[8];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_des_init( &des_ctx );
+ mbedtls_des_init(&des_ctx);
- if( ( ret = pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen ) ) != 0 )
+ if ((ret = pem_pbkdf1(des_key, 8, des_iv, pwd, pwdlen)) != 0) {
goto exit;
+ }
- if( ( ret = mbedtls_des_setkey_dec( &des_ctx, des_key ) ) != 0 )
+ if ((ret = mbedtls_des_setkey_dec(&des_ctx, des_key)) != 0) {
goto exit;
- ret = mbedtls_des_crypt_cbc( &des_ctx, MBEDTLS_DES_DECRYPT, buflen,
- des_iv, buf, buf );
+ }
+ ret = mbedtls_des_crypt_cbc(&des_ctx, MBEDTLS_DES_DECRYPT, buflen,
+ des_iv, buf, buf);
exit:
- mbedtls_des_free( &des_ctx );
- mbedtls_platform_zeroize( des_key, 8 );
+ mbedtls_des_free(&des_ctx);
+ mbedtls_platform_zeroize(des_key, 8);
- return( ret );
+ return ret;
}
/*
* Decrypt with 3DES-CBC, using PBKDF1 for key derivation
*/
-static int pem_des3_decrypt( unsigned char des3_iv[8],
- unsigned char *buf, size_t buflen,
- const unsigned char *pwd, size_t pwdlen )
+static int pem_des3_decrypt(unsigned char des3_iv[8],
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen)
{
mbedtls_des3_context des3_ctx;
unsigned char des3_key[24];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_des3_init( &des3_ctx );
+ mbedtls_des3_init(&des3_ctx);
- if( ( ret = pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen ) ) != 0 )
+ if ((ret = pem_pbkdf1(des3_key, 24, des3_iv, pwd, pwdlen)) != 0) {
goto exit;
+ }
- if( ( ret = mbedtls_des3_set3key_dec( &des3_ctx, des3_key ) ) != 0 )
+ if ((ret = mbedtls_des3_set3key_dec(&des3_ctx, des3_key)) != 0) {
goto exit;
- ret = mbedtls_des3_crypt_cbc( &des3_ctx, MBEDTLS_DES_DECRYPT, buflen,
- des3_iv, buf, buf );
+ }
+ ret = mbedtls_des3_crypt_cbc(&des3_ctx, MBEDTLS_DES_DECRYPT, buflen,
+ des3_iv, buf, buf);
exit:
- mbedtls_des3_free( &des3_ctx );
- mbedtls_platform_zeroize( des3_key, 24 );
+ mbedtls_des3_free(&des3_ctx);
+ mbedtls_platform_zeroize(des3_key, 24);
- return( ret );
+ return ret;
}
#endif /* MBEDTLS_DES_C */
@@ -187,45 +206,47 @@
/*
* Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation
*/
-static int pem_aes_decrypt( unsigned char aes_iv[16], unsigned int keylen,
- unsigned char *buf, size_t buflen,
- const unsigned char *pwd, size_t pwdlen )
+static int pem_aes_decrypt(unsigned char aes_iv[16], unsigned int keylen,
+ unsigned char *buf, size_t buflen,
+ const unsigned char *pwd, size_t pwdlen)
{
mbedtls_aes_context aes_ctx;
unsigned char aes_key[32];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_aes_init( &aes_ctx );
+ mbedtls_aes_init(&aes_ctx);
- if( ( ret = pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen ) ) != 0 )
+ if ((ret = pem_pbkdf1(aes_key, keylen, aes_iv, pwd, pwdlen)) != 0) {
goto exit;
+ }
- if( ( ret = mbedtls_aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 ) ) != 0 )
+ if ((ret = mbedtls_aes_setkey_dec(&aes_ctx, aes_key, keylen * 8)) != 0) {
goto exit;
- ret = mbedtls_aes_crypt_cbc( &aes_ctx, MBEDTLS_AES_DECRYPT, buflen,
- aes_iv, buf, buf );
+ }
+ ret = mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, buflen,
+ aes_iv, buf, buf);
exit:
- mbedtls_aes_free( &aes_ctx );
- mbedtls_platform_zeroize( aes_key, keylen );
+ mbedtls_aes_free(&aes_ctx);
+ mbedtls_platform_zeroize(aes_key, keylen);
- return( ret );
+ return ret;
}
#endif /* MBEDTLS_AES_C */
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
-int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
- const unsigned char *data, const unsigned char *pwd,
- size_t pwdlen, size_t *use_len )
+int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const char *footer,
+ const unsigned char *data, const unsigned char *pwd,
+ size_t pwdlen, size_t *use_len)
{
int ret, enc;
size_t len;
unsigned char *buf;
const unsigned char *s1, *s2, *end;
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
- ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
+ (defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C))
unsigned char pem_iv[16];
mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE;
#else
@@ -234,154 +255,181 @@
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
- if( ctx == NULL )
- return( MBEDTLS_ERR_PEM_BAD_INPUT_DATA );
+ if (ctx == NULL) {
+ return MBEDTLS_ERR_PEM_BAD_INPUT_DATA;
+ }
- s1 = (unsigned char *) strstr( (const char *) data, header );
+ s1 = (unsigned char *) strstr((const char *) data, header);
- if( s1 == NULL )
- return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+ if (s1 == NULL) {
+ return MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
+ }
- s2 = (unsigned char *) strstr( (const char *) data, footer );
+ s2 = (unsigned char *) strstr((const char *) data, footer);
- if( s2 == NULL || s2 <= s1 )
- return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+ if (s2 == NULL || s2 <= s1) {
+ return MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
+ }
- s1 += strlen( header );
- if( *s1 == ' ' ) s1++;
- if( *s1 == '\r' ) s1++;
- if( *s1 == '\n' ) s1++;
- else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
+ s1 += strlen(header);
+ if (*s1 == ' ') {
+ s1++;
+ }
+ if (*s1 == '\r') {
+ s1++;
+ }
+ if (*s1 == '\n') {
+ s1++;
+ } else {
+ return MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
+ }
end = s2;
- end += strlen( footer );
- if( *end == ' ' ) end++;
- if( *end == '\r' ) end++;
- if( *end == '\n' ) end++;
+ end += strlen(footer);
+ if (*end == ' ') {
+ end++;
+ }
+ if (*end == '\r') {
+ end++;
+ }
+ if (*end == '\n') {
+ end++;
+ }
*use_len = end - data;
enc = 0;
- if( s2 - s1 >= 22 && memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
- {
+ if (s2 - s1 >= 22 && memcmp(s1, "Proc-Type: 4,ENCRYPTED", 22) == 0) {
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
- ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
+ (defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C))
enc++;
s1 += 22;
- if( *s1 == '\r' ) s1++;
- if( *s1 == '\n' ) s1++;
- else return( MBEDTLS_ERR_PEM_INVALID_DATA );
+ if (*s1 == '\r') {
+ s1++;
+ }
+ if (*s1 == '\n') {
+ s1++;
+ } else {
+ return MBEDTLS_ERR_PEM_INVALID_DATA;
+ }
#if defined(MBEDTLS_DES_C)
- if( s2 - s1 >= 23 && memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 )
- {
+ if (s2 - s1 >= 23 && memcmp(s1, "DEK-Info: DES-EDE3-CBC,", 23) == 0) {
enc_alg = MBEDTLS_CIPHER_DES_EDE3_CBC;
s1 += 23;
- if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8 ) != 0 )
- return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
+ if (s2 - s1 < 16 || pem_get_iv(s1, pem_iv, 8) != 0) {
+ return MBEDTLS_ERR_PEM_INVALID_ENC_IV;
+ }
s1 += 16;
- }
- else if( s2 - s1 >= 18 && memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 )
- {
+ } else if (s2 - s1 >= 18 && memcmp(s1, "DEK-Info: DES-CBC,", 18) == 0) {
enc_alg = MBEDTLS_CIPHER_DES_CBC;
s1 += 18;
- if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8) != 0 )
- return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
+ if (s2 - s1 < 16 || pem_get_iv(s1, pem_iv, 8) != 0) {
+ return MBEDTLS_ERR_PEM_INVALID_ENC_IV;
+ }
s1 += 16;
}
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
- if( s2 - s1 >= 14 && memcmp( s1, "DEK-Info: AES-", 14 ) == 0 )
- {
- if( s2 - s1 < 22 )
- return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
- else if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 )
+ if (s2 - s1 >= 14 && memcmp(s1, "DEK-Info: AES-", 14) == 0) {
+ if (s2 - s1 < 22) {
+ return MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG;
+ } else if (memcmp(s1, "DEK-Info: AES-128-CBC,", 22) == 0) {
enc_alg = MBEDTLS_CIPHER_AES_128_CBC;
- else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 )
+ } else if (memcmp(s1, "DEK-Info: AES-192-CBC,", 22) == 0) {
enc_alg = MBEDTLS_CIPHER_AES_192_CBC;
- else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 )
+ } else if (memcmp(s1, "DEK-Info: AES-256-CBC,", 22) == 0) {
enc_alg = MBEDTLS_CIPHER_AES_256_CBC;
- else
- return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
+ } else {
+ return MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG;
+ }
s1 += 22;
- if( s2 - s1 < 32 || pem_get_iv( s1, pem_iv, 16 ) != 0 )
- return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
+ if (s2 - s1 < 32 || pem_get_iv(s1, pem_iv, 16) != 0) {
+ return MBEDTLS_ERR_PEM_INVALID_ENC_IV;
+ }
s1 += 32;
}
#endif /* MBEDTLS_AES_C */
- if( enc_alg == MBEDTLS_CIPHER_NONE )
- return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
+ if (enc_alg == MBEDTLS_CIPHER_NONE) {
+ return MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG;
+ }
- if( *s1 == '\r' ) s1++;
- if( *s1 == '\n' ) s1++;
- else return( MBEDTLS_ERR_PEM_INVALID_DATA );
+ if (*s1 == '\r') {
+ s1++;
+ }
+ if (*s1 == '\n') {
+ s1++;
+ } else {
+ return MBEDTLS_ERR_PEM_INVALID_DATA;
+ }
#else
- return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
+ return MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE;
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
- if( s1 >= s2 )
- return( MBEDTLS_ERR_PEM_INVALID_DATA );
-
- ret = mbedtls_base64_decode( NULL, 0, &len, s1, s2 - s1 );
-
- if( ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER )
- return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PEM_INVALID_DATA, ret ) );
-
- if( ( buf = mbedtls_calloc( 1, len ) ) == NULL )
- return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
-
- if( ( ret = mbedtls_base64_decode( buf, len, &len, s1, s2 - s1 ) ) != 0 )
- {
- mbedtls_platform_zeroize( buf, len );
- mbedtls_free( buf );
- return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PEM_INVALID_DATA, ret ) );
+ if (s1 >= s2) {
+ return MBEDTLS_ERR_PEM_INVALID_DATA;
}
- if( enc != 0 )
- {
+ ret = mbedtls_base64_decode(NULL, 0, &len, s1, s2 - s1);
+
+ if (ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER) {
+ return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PEM_INVALID_DATA, ret);
+ }
+
+ if ((buf = mbedtls_calloc(1, len)) == NULL) {
+ return MBEDTLS_ERR_PEM_ALLOC_FAILED;
+ }
+
+ if ((ret = mbedtls_base64_decode(buf, len, &len, s1, s2 - s1)) != 0) {
+ mbedtls_platform_zeroize(buf, len);
+ mbedtls_free(buf);
+ return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PEM_INVALID_DATA, ret);
+ }
+
+ if (enc != 0) {
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
- ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
- if( pwd == NULL )
- {
- mbedtls_platform_zeroize( buf, len );
- mbedtls_free( buf );
- return( MBEDTLS_ERR_PEM_PASSWORD_REQUIRED );
+ (defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C))
+ if (pwd == NULL) {
+ mbedtls_platform_zeroize(buf, len);
+ mbedtls_free(buf);
+ return MBEDTLS_ERR_PEM_PASSWORD_REQUIRED;
}
ret = 0;
#if defined(MBEDTLS_DES_C)
- if( enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC )
- ret = pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );
- else if( enc_alg == MBEDTLS_CIPHER_DES_CBC )
- ret = pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );
+ if (enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC) {
+ ret = pem_des3_decrypt(pem_iv, buf, len, pwd, pwdlen);
+ } else if (enc_alg == MBEDTLS_CIPHER_DES_CBC) {
+ ret = pem_des_decrypt(pem_iv, buf, len, pwd, pwdlen);
+ }
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
- if( enc_alg == MBEDTLS_CIPHER_AES_128_CBC )
- ret = pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );
- else if( enc_alg == MBEDTLS_CIPHER_AES_192_CBC )
- ret = pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );
- else if( enc_alg == MBEDTLS_CIPHER_AES_256_CBC )
- ret = pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );
+ if (enc_alg == MBEDTLS_CIPHER_AES_128_CBC) {
+ ret = pem_aes_decrypt(pem_iv, 16, buf, len, pwd, pwdlen);
+ } else if (enc_alg == MBEDTLS_CIPHER_AES_192_CBC) {
+ ret = pem_aes_decrypt(pem_iv, 24, buf, len, pwd, pwdlen);
+ } else if (enc_alg == MBEDTLS_CIPHER_AES_256_CBC) {
+ ret = pem_aes_decrypt(pem_iv, 32, buf, len, pwd, pwdlen);
+ }
#endif /* MBEDTLS_AES_C */
- if( ret != 0 )
- {
- mbedtls_free( buf );
- return( ret );
+ if (ret != 0) {
+ mbedtls_free(buf);
+ return ret;
}
/*
@@ -390,16 +438,15 @@
*
* Use that as a heuristic to try to detect password mismatches.
*/
- if( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 )
- {
- mbedtls_platform_zeroize( buf, len );
- mbedtls_free( buf );
- return( MBEDTLS_ERR_PEM_PASSWORD_MISMATCH );
+ if (len <= 2 || buf[0] != 0x30 || buf[1] > 0x83) {
+ mbedtls_platform_zeroize(buf, len);
+ mbedtls_free(buf);
+ return MBEDTLS_ERR_PEM_PASSWORD_MISMATCH;
}
#else
- mbedtls_platform_zeroize( buf, len );
- mbedtls_free( buf );
- return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
+ mbedtls_platform_zeroize(buf, len);
+ mbedtls_free(buf);
+ return MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE;
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
@@ -407,77 +454,73 @@
ctx->buf = buf;
ctx->buflen = len;
- return( 0 );
+ return 0;
}
-void mbedtls_pem_free( mbedtls_pem_context *ctx )
+void mbedtls_pem_free(mbedtls_pem_context *ctx)
{
- if ( ctx->buf != NULL )
- {
- mbedtls_platform_zeroize( ctx->buf, ctx->buflen );
- mbedtls_free( ctx->buf );
+ if (ctx->buf != NULL) {
+ mbedtls_platform_zeroize(ctx->buf, ctx->buflen);
+ mbedtls_free(ctx->buf);
}
- mbedtls_free( ctx->info );
+ mbedtls_free(ctx->info);
- mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pem_context ) );
+ mbedtls_platform_zeroize(ctx, sizeof(mbedtls_pem_context));
}
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_PEM_WRITE_C)
-int mbedtls_pem_write_buffer( const char *header, const char *footer,
- const unsigned char *der_data, size_t der_len,
- unsigned char *buf, size_t buf_len, size_t *olen )
+int mbedtls_pem_write_buffer(const char *header, const char *footer,
+ const unsigned char *der_data, size_t der_len,
+ unsigned char *buf, size_t buf_len, size_t *olen)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *encode_buf = NULL, *c, *p = buf;
size_t len = 0, use_len, add_len = 0;
- mbedtls_base64_encode( NULL, 0, &use_len, der_data, der_len );
- add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1;
+ mbedtls_base64_encode(NULL, 0, &use_len, der_data, der_len);
+ add_len = strlen(header) + strlen(footer) + (use_len / 64) + 1;
- if( use_len + add_len > buf_len )
- {
+ if (use_len + add_len > buf_len) {
*olen = use_len + add_len;
- return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
+ return MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL;
}
- if( use_len != 0 &&
- ( ( encode_buf = mbedtls_calloc( 1, use_len ) ) == NULL ) )
- return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
-
- if( ( ret = mbedtls_base64_encode( encode_buf, use_len, &use_len, der_data,
- der_len ) ) != 0 )
- {
- mbedtls_free( encode_buf );
- return( ret );
+ if (use_len != 0 &&
+ ((encode_buf = mbedtls_calloc(1, use_len)) == NULL)) {
+ return MBEDTLS_ERR_PEM_ALLOC_FAILED;
}
- memcpy( p, header, strlen( header ) );
- p += strlen( header );
+ if ((ret = mbedtls_base64_encode(encode_buf, use_len, &use_len, der_data,
+ der_len)) != 0) {
+ mbedtls_free(encode_buf);
+ return ret;
+ }
+
+ memcpy(p, header, strlen(header));
+ p += strlen(header);
c = encode_buf;
- while( use_len )
- {
- len = ( use_len > 64 ) ? 64 : use_len;
- memcpy( p, c, len );
+ while (use_len) {
+ len = (use_len > 64) ? 64 : use_len;
+ memcpy(p, c, len);
use_len -= len;
p += len;
c += len;
*p++ = '\n';
}
- memcpy( p, footer, strlen( footer ) );
- p += strlen( footer );
+ memcpy(p, footer, strlen(footer));
+ p += strlen(footer);
*p++ = '\0';
*olen = p - buf;
- /* Clean any remaining data previously written to the buffer */
- memset( buf + *olen, 0, buf_len - *olen );
+ /* Clean any remaining data previously written to the buffer */
+ memset(buf + *olen, 0, buf_len - *olen);
- mbedtls_free( encode_buf );
- return( 0 );
+ mbedtls_free(encode_buf);
+ return 0;
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */
-