rsa: Prevent usage of long salt in FIPS mode

Jakub Jelenrequested to merge
jjelen/libgcrypt-mirror:salt into master
  • cipher/rsa-common.c (_gcry_rsa_pss_encode): Prevent usage of large salt lengths (_gcry_rsa_pss_verify): Ditto.
  • tests/basic.c (check_pubkey_sign): Check longer salt length fails in FIPS mode
  • tests/t-rsa-pss.c (one_test_sexp): Fix function name in error message

Signed-off-by: Jakub Jelen jjelen@redhat.com

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