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net: tls: Support 256 bit keys

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Wire up support for 256 bit keys from the setsockopt to the crypto
framework

Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dave Watson 2019-01-30 21:58:05 +00:00 • committed by David S. Miller
commit fb99bce712
5 changed files with 137 additions and 7 deletions
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15
include/uapi/linux/tls.h
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@ -59,6 +59,13 @@
#define TLS_CIPHER_AES_GCM_128_TAG_SIZE 16
#define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE 8
#define TLS_CIPHER_AES_GCM_256 52
#define TLS_CIPHER_AES_GCM_256_IV_SIZE 8
#define TLS_CIPHER_AES_GCM_256_KEY_SIZE 32
#define TLS_CIPHER_AES_GCM_256_SALT_SIZE 4
#define TLS_CIPHER_AES_GCM_256_TAG_SIZE 16
#define TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE 8
#define TLS_SET_RECORD_TYPE 1
#define TLS_GET_RECORD_TYPE 2
@ -75,4 +82,12 @@ struct tls12_crypto_info_aes_gcm_128 {
unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
};
struct tls12_crypto_info_aes_gcm_256 {
struct tls_crypto_info info;
unsigned char iv[TLS_CIPHER_AES_GCM_256_IV_SIZE];
unsigned char key[TLS_CIPHER_AES_GCM_256_KEY_SIZE];
unsigned char salt[TLS_CIPHER_AES_GCM_256_SALT_SIZE];
unsigned char rec_seq[TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE];
};
#endif /* _UAPI_LINUX_TLS_H */