imgtool: Add backwards compatibility for ECDSA
Add backwards compatibility to the imgtool to support
the old curve specific TLVs. Currently only ECDSA256 needs this.
Signed-off-by: Roland Mikhel <roland.mikhel@arm.com>
Change-Id: I275894ebc713ea8adcaab4198b036c41233b11e8
diff --git a/scripts/imgtool/main.py b/scripts/imgtool/main.py
index eba557f..b8b2e49 100755
--- a/scripts/imgtool/main.py
+++ b/scripts/imgtool/main.py
@@ -362,6 +362,8 @@
help='send to OUTFILE the payload or payload''s digest instead '
'of complied image. These data can be used for external image '
'signing')
+@click.option('--legacy-ecdsa-tlv', default=False, is_flag=True,
+ help='Use the old curve specific ECDSA TLV')
@click.command(help='''Create a signed or unsigned image\n
INFILE and OUTFILE are parsed as Intel HEX if the params have
.hex extension, otherwise binary format is used''')
@@ -370,7 +372,7 @@
endian, encrypt_keylen, encrypt, infile, outfile, dependencies,
load_addr, hex_addr, erased_val, save_enctlv, security_counter,
boot_record, custom_tlv, rom_fixed, max_align, clear, fix_sig,
- fix_sig_pubkey, sig_out, vector_to_sign):
+ fix_sig_pubkey, sig_out, vector_to_sign, legacy_ecdsa_tlv):
if confirm:
# Confirmed but non-padded images don't make much sense, because
@@ -437,7 +439,7 @@
img.create(key, public_key_format, enckey, dependencies, boot_record,
custom_tlvs, int(encrypt_keylen), clear, baked_signature,
- pub_key, vector_to_sign)
+ pub_key, vector_to_sign, legacy_ecdsa_tlv)
img.save(outfile, hex_addr)
if sig_out is not None: