# MIT Kerberos Documentation

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# krb5_k_verify_checksum_iov - Validate a checksum element in IOV array (operates on opaque key).

krb5_error_code krb5_k_verify_checksum_iov(krb5_context context, krb5_cksumtype cksumtype, krb5_key key, krb5_keyusage usage, const krb5_crypto_iov *data, size_t num_data, krb5_boolean *valid)

param

  [in] context - Library context

  [in] cksumtype - Checksum type (0 for mandatory type)

  [in] key - Encryption key for a keyed checksum

  [in] usage - Key usage (see `KRB5_KEYUSAGE` types)

  [in] data - IOV array

  [in] num_data - Size of data

  [out] valid - Non-zero for success, zero for failure

retval

  - 0 Success; otherwise - Kerberos error codes

Confirm that the checksum in the `KRB5_CRYPTO_TYPE_CHECKSUM` element is a valid checksum of the `KRB5_CRYPTO_TYPE_DATA` and `KRB5_CRYPTO_TYPE_SIGN_ONLY` regions in the iov.

See also

`krb5_k_make_checksum_iov()`

Note

This function is similar to `krb5_c_verify_checksum_iov()` , but operates on opaque key .