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Don't call otp if the hmac is unknown

This commit is contained in:
Lucas 2021-02-11 21:21:01 +00:00
parent 4d2024128e
commit dde97e45d0
1 changed files with 11 additions and 3 deletions
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14
otp.c
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@ -75,9 +75,17 @@ hotp(enum otp_hmac hmac, const void *key, size_t key_len, uint64_t counter,
return -1;
switch (hmac) {
case OTP_HMAC_SHA1: evp_md = EVP_sha1(); break;
case OTP_HMAC_SHA256: evp_md = EVP_sha256(); break;
case OTP_HMAC_SHA512: evp_md = EVP_sha512(); break;
case OTP_HMAC_SHA1:
evp_md = EVP_sha1();
break;
case OTP_HMAC_SHA256:
evp_md = EVP_sha256();
break;
case OTP_HMAC_SHA512:
evp_md = EVP_sha512();
break;
default:
return -1;
}
return otp(evp_md, key, (int)key_len, counter, digits);