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-rw-r--r--src/block/des/des.cpp144
-rw-r--r--src/block/des/des.h8
-rw-r--r--src/block/des/desx.cpp28
-rw-r--r--src/block/des/desx.h4
4 files changed, 110 insertions, 74 deletions
diff --git a/src/block/des/des.cpp b/src/block/des/des.cpp
index 37520e0fc..1c9d37e6b 100644
--- a/src/block/des/des.cpp
+++ b/src/block/des/des.cpp
@@ -139,51 +139,63 @@ 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 +209,67 @@ 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;
+ }
}
/*
diff --git a/src/block/des/des.h b/src/block/des/des.h
index 6fa59de5e..39d1ac404 100644
--- a/src/block/des/des.h
+++ b/src/block/des/des.h
@@ -23,8 +23,8 @@ class BOTAN_DLL DES : public BlockCipher
BlockCipher* clone() const { return new DES; }
DES() : BlockCipher(8, 8) {}
private:
- void enc(const byte[], byte[]) const;
- void dec(const byte[], byte[]) const;
+ void encrypt_n(const byte in[], byte out[], u32bit blocks) const;
+ void decrypt_n(const byte in[], byte out[], u32bit blocks) const;
void key_schedule(const byte[], u32bit);
SecureBuffer<u32bit, 32> round_key;
@@ -41,8 +41,8 @@ class BOTAN_DLL TripleDES : public BlockCipher
BlockCipher* clone() const { return new TripleDES; }
TripleDES() : BlockCipher(8, 16, 24, 8) {}
private:
- void enc(const byte[], byte[]) const;
- void dec(const byte[], byte[]) const;
+ void encrypt_n(const byte in[], byte out[], u32bit blocks) const;
+ void decrypt_n(const byte in[], byte out[], u32bit blocks) const;
void key_schedule(const byte[], u32bit);
SecureBuffer<u32bit, 96> round_key;
diff --git a/src/block/des/desx.cpp b/src/block/des/desx.cpp
index e557901d3..1fc1c47f2 100644
--- a/src/block/des/desx.cpp
+++ b/src/block/des/desx.cpp
@@ -13,21 +13,33 @@ namespace Botan {
/*
* DESX Encryption
*/
-void DESX::enc(const byte in[], byte out[]) const
+void DESX::encrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- xor_buf(out, in, K1.begin(), BLOCK_SIZE);
- des.encrypt(out);
- xor_buf(out, K2.begin(), BLOCK_SIZE);
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ xor_buf(out, in, K1.begin(), BLOCK_SIZE);
+ des.encrypt(out);
+ xor_buf(out, K2.begin(), BLOCK_SIZE);
+
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
* DESX Decryption
*/
-void DESX::dec(const byte in[], byte out[]) const
+void DESX::decrypt_n(const byte in[], byte out[], u32bit blocks) const
{
- xor_buf(out, in, K2.begin(), BLOCK_SIZE);
- des.decrypt(out);
- xor_buf(out, K1.begin(), BLOCK_SIZE);
+ for(u32bit i = 0; i != blocks; ++i)
+ {
+ xor_buf(out, in, K2.begin(), BLOCK_SIZE);
+ des.decrypt(out);
+ xor_buf(out, K1.begin(), BLOCK_SIZE);
+
+ in += BLOCK_SIZE;
+ out += BLOCK_SIZE;
+ }
}
/*
diff --git a/src/block/des/desx.h b/src/block/des/desx.h
index 49ecc2421..d71335071 100644
--- a/src/block/des/desx.h
+++ b/src/block/des/desx.h
@@ -23,8 +23,8 @@ class BOTAN_DLL DESX : public BlockCipher
BlockCipher* clone() const { return new DESX; }
DESX() : BlockCipher(8, 24) {}
private:
- void enc(const byte[], byte[]) const;
- void dec(const byte[], byte[]) const;
+ void encrypt_n(const byte in[], byte out[], u32bit blocks) const;
+ void decrypt_n(const byte in[], byte out[], u32bit blocks) const;
void key_schedule(const byte[], u32bit);
SecureBuffer<byte, 8> K1, K2;
DES des;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 07:45:12 +0000