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libcli/auth: add netlogon_creds_aes_{en|de}crypt routines.

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Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This commit is contained in:
Günther Deschner 2012-11-29 21:23:30 +01:00 committed by Stefan Metzmacher
parent b6e2be8e14
commit 429600c5f3
2 changed files with 30 additions and 0 deletions
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28
libcli/auth/credentials.c
View File

@ -222,6 +222,34 @@ void netlogon_creds_arcfour_crypt(struct netlogon_creds_CredentialState *creds,
data_blob_free(&session_key);
}
/*
AES encrypt a password buffer using the session key
*/
void netlogon_creds_aes_encrypt(struct netlogon_creds_CredentialState *creds, uint8_t *data, size_t len)
{
AES_KEY key;
uint8_t iv[AES_BLOCK_SIZE];
AES_set_encrypt_key(creds->session_key, 128, &key);
ZERO_STRUCT(iv);
aes_cfb8_encrypt(data, data, len, &key, iv, AES_ENCRYPT);
}
/*
AES decrypt a password buffer using the session key
*/
void netlogon_creds_aes_decrypt(struct netlogon_creds_CredentialState *creds, uint8_t *data, size_t len)
{
AES_KEY key;
uint8_t iv[AES_BLOCK_SIZE];
AES_set_encrypt_key(creds->session_key, 128, &key);
ZERO_STRUCT(iv);
aes_cfb8_encrypt(data, data, len, &key, iv, AES_DECRYPT);
}
/*****************************************************************
The above functions are common to the client and server interface
next comes the client specific functions

2
libcli/auth/proto.h
View File

@ -16,6 +16,8 @@ void netlogon_creds_des_decrypt_LMKey(struct netlogon_creds_CredentialState *cre
void netlogon_creds_des_encrypt(struct netlogon_creds_CredentialState *creds, struct samr_Password *pass);
void netlogon_creds_des_decrypt(struct netlogon_creds_CredentialState *creds, struct samr_Password *pass);
void netlogon_creds_arcfour_crypt(struct netlogon_creds_CredentialState *creds, uint8_t *data, size_t len);
void netlogon_creds_aes_encrypt(struct netlogon_creds_CredentialState *creds, uint8_t *data, size_t len);
void netlogon_creds_aes_decrypt(struct netlogon_creds_CredentialState *creds, uint8_t *data, size_t len);
/*****************************************************************
The above functions are common to the client and server interface