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Code Issues Releases Wiki Activity

trezor.crypto: use 64-byte ecdsa signatures (for now)

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This commit is contained in:
Pavol Rusnak 2016-11-08 18:33:03 +01:00
parent 9fb6e328a0
commit 2d0675341b
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
2 changed files with 4 additions and 4 deletions
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4
extmod/modtrezorcrypto/modtrezorcrypto-nist256p1.h
View File

@ -77,7 +77,7 @@ STATIC mp_obj_t mod_TrezorCrypto_Nist256p1_sign(mp_obj_t self, mp_obj_t secret_k
mp_raise_ValueError("Invalid length of digest");
}
vstr_t vstr;
vstr_init_len(&vstr, 65);
vstr_init_len(&vstr, 64);
uint8_t pby;
if (0 != ecdsa_sign_digest(&nist256p1, (const uint8_t *)sk.buf, (const uint8_t *)dig.buf, (uint8_t *)vstr.buf, &pby, NULL)) { // TODO: is_canonical
mp_raise_ValueError("Signing failed");
@ -100,7 +100,7 @@ STATIC mp_obj_t mod_TrezorCrypto_Nist256p1_verify(size_t n_args, const mp_obj_t
if (pk.len != 33 && pk.len != 65) {
mp_raise_ValueError("Invalid length of public key");
}
if (sig.len != 65) {
if (sig.len != 64) {
mp_raise_ValueError("Invalid length of signature");
}
if (dig.len != 32) {

4
extmod/modtrezorcrypto/modtrezorcrypto-secp256k1.h
View File

@ -77,7 +77,7 @@ STATIC mp_obj_t mod_TrezorCrypto_Secp256k1_sign(mp_obj_t self, mp_obj_t secret_k
mp_raise_ValueError("Invalid length of digest");
}
vstr_t vstr;
vstr_init_len(&vstr, 65);
vstr_init_len(&vstr, 64);
uint8_t pby;
if (0 != ecdsa_sign_digest(&secp256k1, (const uint8_t *)sk.buf, (const uint8_t *)dig.buf, (uint8_t *)vstr.buf, &pby, NULL)) { // TODO: is_canonical
mp_raise_ValueError("Signing failed");
@ -100,7 +100,7 @@ STATIC mp_obj_t mod_TrezorCrypto_Secp256k1_verify(size_t n_args, const mp_obj_t
if (pk.len != 33 && pk.len != 65) {
mp_raise_ValueError("Invalid length of public key");
}
if (sig.len != 65) {
if (sig.len != 64) {
mp_raise_ValueError("Invalid length of signature");
}
if (dig.len != 32) {