gnutls_cipher_get_key_size - Linux
Overview
The gnutls_cipher_get_key_size()
function in GnuTLS is used to retrieve the key size of a given cipher. It takes a cipher handle as input and returns the key size in bits. This function is useful for determining the security strength of a cipher.
Syntax
gnutls_cipher_get_key_size(gnutls_cipher_t cipher);
Options/Flags
None.
Examples
/* Get the key size of a cipher */
gnutls_cipher_t cipher;
int key_size;
gnutls_cipher_init(&cipher);
gnutls_cipher_set_algo(cipher, GNUTLS_CIPHER_AES_256);
key_size = gnutls_cipher_get_key_size(cipher);
printf("The key size of AES-256 is %d bits\n", key_size);
Common Issues
None.
Integration
This function can be used in conjunction with other GnuTLS functions to create a variety of cryptographic applications. For example, it can be used to:
- Determine the security strength of a cipher.
- Select a cipher with a specific key size.
- Create a cipher context with a specific key size.
Related Commands
gnutls_cipher_init()
gnutls_cipher_set_algo()
gnutls_cipher_get_params()