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Implement Originality Signature Check in 'hf mfu info'

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* add support for elliptic curve 'secp128r1' to mbedtls library
* change ecdsa_signature_verify() to allow different curves, signature lengths, and skipping hash
* add another public key for Mifare Ultralight EV1
This commit is contained in:
pwpiwi 2019-08-01 10:53:26 -04:00 • committed by GitHub
commit 3a5ffba7c1
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
13 changed files with 278 additions and 165 deletions
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8
client/cmdhffido.c
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@ -353,9 +353,9 @@ int CmdHFFidoRegister(const char *cmd) {
&buf[1], 65, // user public key
NULL, 0);
//PrintAndLog("--xbuf(%d)[%d]: %s", res, xbuflen, sprint_hex(xbuf, xbuflen));
res = ecdsa_signature_verify(public_key, xbuf, xbuflen, &buf[hashp], len - hashp);
res = ecdsa_signature_verify(MBEDTLS_ECP_DP_SECP256R1, public_key, xbuf, xbuflen, &buf[hashp], len - hashp, true);
if (res) {
if (res == -0x4e00) {
if (res == MBEDTLS_ERR_ECP_VERIFY_FAILED) {
PrintAndLog("Signature is NOT VALID.");
} else {
PrintAndLog("Other signature check error: %x %s", (res<0)?-res:res, ecdsa_get_error(res));
@ -579,9 +579,9 @@ int CmdHFFidoAuthenticate(const char *cmd) {
data, 32, // challenge parameter
NULL, 0);
//PrintAndLog("--xbuf(%d)[%d]: %s", res, xbuflen, sprint_hex(xbuf, xbuflen));
res = ecdsa_signature_verify(public_key, xbuf, xbuflen, &buf[5], len - 5);
res = ecdsa_signature_verify(MBEDTLS_ECP_DP_SECP256R1, public_key, xbuf, xbuflen, &buf[5], len - 5, true);
if (res) {
if (res == -0x4e00) {
if (res == MBEDTLS_ERR_ECP_VERIFY_FAILED) {
PrintAndLog("Signature is NOT VALID.");
} else {
PrintAndLog("Other signature check error: %x %s", (res<0)?-res:res, ecdsa_get_error(res));