| Name | perl-digest-hmac |
| Version | 1.04 |
| Category | development |
| Description | Perl extension Digest::HMAC. |
| Maintainer | pascal.bellard@slitaz.org |
| License | GPL |
| Website | https://metacpan.org/dist/Digest-HMAC |
| Sizes | 20K / 80K |
| Depends on |  perl |
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Description
HMAC is used for message integrity checks between two parties that share a secret key, and works in combination with some other Digest algorithm, usually MD5 or SHA-1. The HMAC mechanism is described in RFC 2104. HMAC follow the common Digest:: interface, but the constructor takes the secret key and the name of some other simple Digest:: as argument. The hmac() and hmac_hex() functions and the Digest::HMAC->new() constructor takes an optional $blocksize argument as well. The HMAC algorithm assumes the digester to hash by iterating a basic compression function on blocks of data and the $blocksize should match the byte-length of such blocks. The default $blocksize is 64 which is suitable for the MD5 and SHA-1 digest functions. For stronger algorithms the blocksize probably needs to be increased. |