/ 
Crypt-PBKDF2-0.101160
/ Crypt::PBKDF2::Hash::HMACSHA2
Security Advisories (3)
CVE-2017-20240 (2026-06-12)

Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.

CVE-2026-9638 (2026-06-12)

Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.

CVE-2026-9641 (2026-06-12)

Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.

NAME

Crypt::PBKDF2::Hash::HMACSHA2 - HMAC-SHA2 support for Crypt::PBKDF2 using Digest::SHA

VERSION

version 0.101160

DESCRIPTION

Uses Digest::SHA hmac_sha256/hmac_sha384/hmac_sha512 to provide the HMAC-SHA2 family of hashes for Crypt::PBKDF2.

AUTHOR

Andrew Rodland <arodland@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Andrew Rodland.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.