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Resync more with OpenBSD's rijndael.c, in particular "#if 0"-ing out some

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unused code.  Should fix compile error reported by plautrba at redhat.
This commit is contained in:
Darren Tucker 2014-12-10 02:12:51 +11:00
parent 642652d280
commit 4bfad14ca5
1 changed files with 6 additions and 34 deletions
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40
rijndael.c
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@ -708,25 +708,20 @@ rijndaelKeySetupEnc(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits)
return 0;
}
#if 0
/**
* Expand the cipher key into the decryption key schedule.
*
* @return the number of rounds for the given cipher key size.
*/
int
rijndaelKeySetupDec(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits,
int have_encrypt)
rijndaelKeySetupDec(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits)
{
int Nr, i, j;
u32 temp;
/* expand the cipher key: */
if (have_encrypt > 0) {
/* Already done */
Nr = have_encrypt;
} else {
Nr = rijndaelKeySetupEnc(rk, cipherKey, keyBits);
}
Nr = rijndaelKeySetupEnc(rk, cipherKey, keyBits);
/* invert the order of the round keys: */
for (i = 0, j = 4*Nr; i < j; i += 4, j -= 4) {
@ -761,6 +756,7 @@ rijndaelKeySetupDec(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits,
}
return Nr;
}
#endif
void
rijndaelEncrypt(const u32 rk[/*4*(Nr + 1)*/], int Nr, const u8 pt[16],
@ -946,6 +942,7 @@ rijndaelEncrypt(const u32 rk[/*4*(Nr + 1)*/], int Nr, const u8 pt[16],
PUTU32(ct + 12, s3);
}
#if 0
static void
rijndaelDecrypt(const u32 rk[/*4*(Nr + 1)*/], int Nr, const u8 ct[16],
u8 pt[16])
@ -1129,29 +1126,4 @@ rijndaelDecrypt(const u32 rk[/*4*(Nr + 1)*/], int Nr, const u8 ct[16],
rk[3];
PUTU32(pt + 12, s3);
}
void
rijndael_set_key(rijndael_ctx *ctx, u_char *key, int bits, int do_encrypt)
{
ctx->Nr = rijndaelKeySetupEnc(ctx->ek, key, bits);
if (do_encrypt) {
ctx->decrypt = 0;
memset(ctx->dk, 0, sizeof(ctx->dk));
} else {
ctx->decrypt = 1;
memcpy(ctx->dk, ctx->ek, sizeof(ctx->dk));
rijndaelKeySetupDec(ctx->dk, key, bits, ctx->Nr);
}
}
void
rijndael_decrypt(rijndael_ctx *ctx, u_char *src, u_char *dst)
{
rijndaelDecrypt(ctx->dk, ctx->Nr, src, dst);
}
void
rijndael_encrypt(rijndael_ctx *ctx, u_char *src, u_char *dst)
{
rijndaelEncrypt(ctx->ek, ctx->Nr, src, dst);
}
#endif