gnutls_crypto_register_digest - Linux
Overview
gnutls_crypto_register_digest registers a digest algorithm with the GNUTLS crypto library. This enables applications to use the digest algorithm for cryptographic operations like hashing and digital signatures.
Syntax
gnutls_crypto_register_digest(
int digest_id,
gnutls_digest_func_t digest_func,
unsigned int digest_length,
int digest_size,
int digest_test_size,
int digest_truncate_size
);
Options/Flags
| Option | Description |
|—|—|
| digest_id
| The GNUTLS ID of the digest algorithm. |
| digest_func
| The function that computes the digest. |
| digest_length
| The length of the digest in bits. |
| digest_size
| The size of the digest in bytes. |
| digest_test_size
| The size of the test data for the digest. |
| digest_truncate_size
| The size of the truncated digest. |
Examples
Register the SHA-256 digest algorithm:
gnutls_crypto_register_digest(
GNUTLS_DIG_SHA256,
gnutls_sha256_mac,
256,
32,
0,
0
);
Common Issues
- Ensure that the digest algorithm is supported by the underlying cryptographic library.
- Verify that the digest length and size parameters are consistent.
- Check for compatibility issues when using the digest algorithm with other libraries or applications.
Integration
gnutls_crypto_register_digest can be used in conjunction with other GNUTLS functions to create secure communication channels, verify digital signatures, and perform various cryptographic operations.
Related Commands
- gnutls_crypto_register_cipher
- gnutls_crypto_register_mac
- gnutls_crypto_register_key_exchange