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Manual Reference Pages  -  KRB5_C_SET_CHECKSUM (3)


krb5_c_block_size, krb5_c_decrypt, krb5_c_encrypt, krb5_c_encrypt_length, krb5_c_enctype_compare, krb5_c_get_checksum, krb5_c_is_coll_proof_cksum, krb5_c_is_keyed_cksum, krb5_c_keylength, krb5_c_make_checksum, krb5_c_make_random_key, krb5_c_set_checksum, krb5_c_valid_cksumtype, krb5_c_valid_enctype, krb5_c_verify_checksum, krb5_c_checksum_length - Kerberos 5 crypto API


See Also


Kerberos 5 Library (libkrb5, -lkrb5)


.In krb5.h

.Fo krb5_c_block_size krb5_context context krb5_enctype enctype size_t *blocksize
.Fc krb5_error_code
.Fo krb5_c_decrypt krb5_context context const krb5_keyblock key krb5_keyusage usage const krb5_data *ivec krb5_enc_data *input krb5_data *output
.Fc krb5_error_code
.Fo krb5_c_encrypt krb5_context context const krb5_keyblock *key krb5_keyusage usage const krb5_data *ivec const krb5_data *input krb5_enc_data *output
.Fc krb5_error_code
.Fo krb5_c_encrypt_length krb5_context context krb5_enctype enctype size_t inputlen size_t *length
.Fc krb5_error_code
.Fo krb5_c_enctype_compare krb5_context context krb5_enctype e1 krb5_enctype e2 krb5_boolean *similar
.Fc krb5_error_code
.Fo krb5_c_make_random_key krb5_context context krb5_enctype enctype krb5_keyblock *random_key
.Fc krb5_error_code
.Fo krb5_c_make_checksum krb5_context context krb5_cksumtype cksumtype const krb5_keyblock *key krb5_keyusage usage const krb5_data *input krb5_checksum *cksum
.Fc krb5_error_code
.Fo krb5_c_verify_checksum krb5_context context const krb5_keyblock *key krb5_keyusage usage const krb5_data *data const krb5_checksum *cksum krb5_boolean *valid
.Fc krb5_error_code
.Fo krb5_c_checksum_length krb5_context context krb5_cksumtype cksumtype size_t *length
.Fc krb5_error_code
.Fo krb5_c_get_checksum krb5_context context const krb5_checksum *cksum krb5_cksumtype *type krb5_data **data
.Fc krb5_error_code
.Fo krb5_c_set_checksum krb5_context context krb5_checksum *cksum krb5_cksumtype type const krb5_data *data
.Fc krb5_boolean
.Fo krb5_c_valid_enctype krb5_enctype etype
.Fc krb5_boolean
.Fo krb5_c_valid_cksumtype krb5_cksumtype ctype
.Fc krb5_boolean
.Fo krb5_c_is_coll_proof_cksum krb5_cksumtype ctype
.Fc krb5_boolean
.Fo krb5_c_is_keyed_cksum krb5_cksumtype ctype
.Fc krb5_error_code
.Fo krb5_c_keylengths krb5_context context krb5_enctype enctype size_t *inlength size_t *keylength


The functions starting with krb5_c are compat functions with MIT kerberos.

The krb5_enc_data structure holds and encrypted data. There are two public accessable members of krb5_enc_data. enctype that holds the encryption type of the data encrypted and ciphertext that is a krb5_data that might contain the encrypted data.

krb5_c_block_size returns the blocksize of the encryption type.

krb5_c_decrypt decrypts input and store the data in output. If ivec is NULL the default initialization vector for that encryption type will be used.

krb5_c_encrypt encrypts the plaintext in input and store the ciphertext in output.

krb5_c_encrypt_length returns the length the encrypted data given the plaintext length.

krb5_c_enctype_compare compares to encryption types and returns if they use compatible encryption key types.

krb5_c_make_checksum creates a checksum cksum with the checksum type cksumtype of the data in data. key and usage are used if the checksum is a keyed checksum type. Returns 0 or an error code.

krb5_c_verify_checksum verifies the checksum of data in cksum that was created with key using the key usage usage. verify is set to non-zero if the checksum verifies correctly and zero if not. Returns 0 or an error code.

krb5_c_checksum_length returns the length of the checksum.

krb5_c_set_checksum sets the krb5_checksum structure given type and data. The content of cksum should be freeed with krb5_c_free_checksum_contents.

krb5_c_get_checksum retrieves the components of the krb5_checksum. structure. data should be free with krb5_free_data. If some either of data or checksum is not needed for the application, NULL can be passed in.

krb5_c_valid_enctype returns true if etype is a valid encryption type.

krb5_c_valid_cksumtype returns true if ctype is a valid checksum type.

krb5_c_is_keyed_cksum return true if ctype is a keyed checksum type.

krb5_c_is_coll_proof_cksum returns true if ctype is a collision proof checksum type.

krb5_c_keylengths return the minimum length ( inlength) bytes needed to create a key and the length ( keylength) of the resulting key for the enctype.


krb5(3), krb5_create_checksum(3), krb5_free_data(3), kerberos(8)
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