Allow zero cksumtype in krb5_k_verify_checksum() A checksum type of 0 means to use the mandatory checksum type in krb5_k_make_checksum(), krb5_k_make_checksum_iov(), and krb5_k_verify_checksum_iov(). Extend this meaning to krb5_k_verify_checksum() for the checksum type in the krb5_checksum argument. This change also applies to krb5_c_verify_checksum(). Add code to t_cksums.c to test checksum verification, including with checksum type 0 for applicable test cases. https://github.com/krb5/krb5/commit/78e77f10aca448161077016677b0fe963d6bf9ee Author: Greg Hudson Commit: 78e77f10aca448161077016677b0fe963d6bf9ee Branch: master src/include/krb5/krb5.hin | 12 ++++++++---- src/lib/crypto/crypto_tests/t_cksums.c | 28 +++++++++++++++++++++++++++- src/lib/crypto/krb/verify_checksum.c | 11 ++++++++++- 3 files changed, 45 insertions(+), 6 deletions(-)