sunrpc/auth_gss/gss_krb5_crypto.c

66  * pad minimum plaintext length to at least a single cipher block.
88  * @tfm: initialized cipher transform
96  * cipher's ivsize.
393 gss_krb5_cts_crypt(struct crypto_sync_skcipher *cipher, struct xdr_buf *buf,
398 	SYNC_SKCIPHER_REQUEST_ON_STACK(req, cipher);
427 	skcipher_request_set_sync_tfm(req, cipher);
450 		memcpy(iv, data, crypto_sync_skcipher_ivsize(cipher));
460  * @cts_tfm: CBC cipher with CTS
461  * @cbc_tfm: base CBC cipher
468  * To provide confidentiality, encrypt using cipher block chaining
531  * @cts_tfm: CBC cipher with CTS
532  * @cbc_tfm: base CBC cipher
588 	struct crypto_sync_skcipher *cipher, *aux_cipher;
594 		cipher = kctx->initiator_enc;
598 		cipher = kctx->acceptor_enc;
602 	conflen = crypto_sync_skcipher_blocksize(cipher);
644 	err = krb5_cbc_cts_encrypt(cipher, aux_cipher,
661 	struct crypto_sync_skcipher *cipher, *aux_cipher;
670 		cipher = kctx->acceptor_enc;
674 		cipher = kctx->initiator_enc;
684 	ret = krb5_cbc_cts_decrypt(cipher, aux_cipher, 0, &subbuf);
704 	*headskip = crypto_sync_skcipher_blocksize(cipher);
714  * @cipher: an initialized cipher transform
730 u32 krb5_etm_checksum(struct crypto_sync_skcipher *cipher,
734 	unsigned int ivsize = crypto_sync_skcipher_ivsize(cipher);
743 	/* For RPCSEC, the "initial cipher state" is always all zeroes. */
789  * calculated over the cipher state concatenated with the AES
801  *    IV = cipher state
816 	struct crypto_sync_skcipher *cipher, *aux_cipher;
824 		cipher = kctx->initiator_enc;
828 		cipher = kctx->acceptor_enc;
832 	conflen = crypto_sync_skcipher_blocksize(cipher);
853 	err = krb5_cbc_cts_encrypt(cipher, aux_cipher,
861 	err = krb5_etm_checksum(cipher, ahash,
890  *    IV = cipher state
904 	struct crypto_sync_skcipher *cipher, *aux_cipher;
913 		cipher = kctx->acceptor_enc;
917 		cipher = kctx->initiator_enc;
929 	ret = krb5_etm_checksum(cipher, ahash, &subbuf, 0, &our_hmac_obj);
941 	ret = krb5_cbc_cts_decrypt(cipher, aux_cipher, 0, &subbuf);
947 	*headskip = crypto_sync_skcipher_blocksize(cipher);