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-rw-r--r--src/block/des/des.cpp143
1 files changed, 83 insertions, 60 deletions
diff --git a/src/block/des/des.cpp b/src/block/des/des.cpp
index 37520e0fc..05287304f 100644
--- a/src/block/des/des.cpp
+++ b/src/block/des/des.cpp
@@ -139,51 +139,62 @@ void des_decrypt(u32bit& L, u32bit& R,
/*
* DES Encryption
*/
-void DES::enc(const byte in[], byte out[]) const
+void DES::encrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
- (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
- (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
- (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
+ (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
+ (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
+ (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
- u32bit L = static_cast<u32bit>(T >> 32);
- u32bit R = static_cast<u32bit>(T);
+ u32bit L = static_cast<u32bit>(T >> 32);
+ u32bit R = static_cast<u32bit>(T);
- des_encrypt(L, R, round_key);
+ des_encrypt(L, R, round_key);
- T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
- (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
- (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
- (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
+ T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
+ (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
+ (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
+ (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
+ T = rotate_left(T, 32);
- T = rotate_left(T, 32);
+ store_be(T, out);
- store_be(T, out);
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
* DES Decryption
*/
-void DES::dec(const byte in[], byte out[]) const
+void DES::decrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
- (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
- (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
- (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
+ (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
+ (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
+ (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
- u32bit L = static_cast<u32bit>(T >> 32);
- u32bit R = static_cast<u32bit>(T);
+ u32bit L = static_cast<u32bit>(T >> 32);
+ u32bit R = static_cast<u32bit>(T);
- des_decrypt(L, R, round_key);
+ des_decrypt(L, R, round_key);
- T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
- (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
- (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
- (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
+ T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
+ (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
+ (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
+ (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
- T = rotate_left(T, 32);
+ T = rotate_left(T, 32);
- store_be(T, out);
+ store_be(T, out);
+
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
@@ -197,55 +208,67 @@ void DES::key_schedule(const byte key[], u32bit)
/*
* TripleDES Encryption
*/
-void TripleDES::enc(const byte in[], byte out[]) const
+void TripleDES::encrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
- (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
- (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
- (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
+ (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
+ (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
+ (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
- u32bit L = static_cast<u32bit>(T >> 32);
- u32bit R = static_cast<u32bit>(T);
+ u32bit L = static_cast<u32bit>(T >> 32);
+ u32bit R = static_cast<u32bit>(T);
- des_encrypt(L, R, round_key);
- des_decrypt(R, L, round_key + 32);
- des_encrypt(L, R, round_key + 64);
+ des_encrypt(L, R, round_key);
+ des_decrypt(R, L, round_key + 32);
+ des_encrypt(L, R, round_key + 64);
- T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
- (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
- (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
- (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
+ T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
+ (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
+ (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
+ (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
- T = rotate_left(T, 32);
+ T = rotate_left(T, 32);
- store_be(T, out);
+ store_be(T, out);
+
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
* TripleDES Decryption
*/
-void TripleDES::dec(const byte in[], byte out[]) const
+void TripleDES::decrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
- (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
- (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
- (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ u64bit T = (DES_IPTAB1[in[0]] ) | (DES_IPTAB1[in[1]] << 1) |
+ (DES_IPTAB1[in[2]] << 2) | (DES_IPTAB1[in[3]] << 3) |
+ (DES_IPTAB1[in[4]] << 4) | (DES_IPTAB1[in[5]] << 5) |
+ (DES_IPTAB1[in[6]] << 6) | (DES_IPTAB2[in[7]] );
- u32bit L = static_cast<u32bit>(T >> 32);
- u32bit R = static_cast<u32bit>(T);
+ u32bit L = static_cast<u32bit>(T >> 32);
+ u32bit R = static_cast<u32bit>(T);
- des_decrypt(L, R, round_key + 64);
- des_encrypt(R, L, round_key + 32);
- des_decrypt(L, R, round_key);
+ des_decrypt(L, R, round_key + 64);
+ des_encrypt(R, L, round_key + 32);
+ des_decrypt(L, R, round_key);
- T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
- (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
- (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
- (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
+ T = (DES_FPTAB1[get_byte(0, L)] << 5) | (DES_FPTAB1[get_byte(1, L)] << 3) |
+ (DES_FPTAB1[get_byte(2, L)] << 1) | (DES_FPTAB2[get_byte(3, L)] << 1) |
+ (DES_FPTAB1[get_byte(0, R)] << 4) | (DES_FPTAB1[get_byte(1, R)] << 2) |
+ (DES_FPTAB1[get_byte(2, R)] ) | (DES_FPTAB2[get_byte(3, R)] );
- T = rotate_left(T, 32);
+ T = rotate_left(T, 32);
- store_be(T, out);
+ store_be(T, out);
+
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 07:11:20 +0000