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Add DES-CBC support into internal crypto implementation

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This commit is contained in:
Jouni Malinen 2009-10-17 12:05:06 +03:00
parent 8ef74414fc
commit 506b45ed22
2 changed files with 74 additions and 0 deletions
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29
src/crypto/des-internal.c
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@ -429,6 +429,35 @@ void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
}
void des_key_setup(const u8 *key, u32 *ek, u32 *dk)
{
deskey(key, 0, ek);
deskey(key, 1, dk);
}
void des_block_encrypt(const u8 *plain, const u32 *ek, u8 *crypt)
{
u32 work[2];
work[0] = WPA_GET_BE32(plain);
work[1] = WPA_GET_BE32(plain + 4);
desfunc(work, ek);
WPA_PUT_BE32(crypt, work[0]);
WPA_PUT_BE32(crypt + 4, work[1]);
}
void des_block_decrypt(const u8 *crypt, const u32 *dk, u8 *plain)
{
u32 work[2];
work[0] = WPA_GET_BE32(crypt);
work[1] = WPA_GET_BE32(crypt + 4);
desfunc(work, dk);
WPA_PUT_BE32(plain, work[0]);
WPA_PUT_BE32(plain + 4, work[1]);
}
struct des3_key_s {
u32 ek[3][32];
u32 dk[3][32];