HMAC¶
Bindings for HMAC.
Danger
When comparing the signature to an externally supplied digest during
a verification routine, it is mandatory to use a constant-time
comparison function such as secrets.compare_digest() from
python’s standard library. Not doing so makes it vulnerable to
timing attacks.
- pyhacl.hmac.hmac_sha256(key: bytes, message: bytes) bytes¶
Return the HMAC-SHA-2-256 MAC of
messageusingkey.The key can be any length and will be hashed if it is longer and padded if it is shorter than 64 bytes.
- Returns:
A 32 bytes signature.
Binding for
Hacl_HMAC_compute_sha2_256.
- pyhacl.hmac.hmac_sha384(key: bytes, message: bytes) bytes¶
Return the HMAC-SHA-2-384 MAC of
messageusingkey.The key can be any length and will be hashed if it is longer and padded if it is shorter than 128 bytes.
- Returns:
A 48 bytes signature.
Binding for
Hacl_HMAC_compute_sha2_384.
- pyhacl.hmac.hmac_sha512(key: bytes, message: bytes) bytes¶
Return the HMAC-SHA-2-256 MAC of
messageusingkey.The key can be any length and will be hashed if it is longer and padded if it is shorter than 128 bytes.
- Returns:
A 64 bytes signature.
Binding for
Hacl_HMAC_compute_sha2_512.