diff options
author | lloyd <[email protected]> | 2008-09-28 20:09:30 +0000 |
---|---|---|
committer | lloyd <[email protected]> | 2008-09-28 20:09:30 +0000 |
commit | 30241a0530d66b558006466460b4bfb22b79a49c (patch) | |
tree | 1ee6970f0493576befae9f94f74d777562542e71 /src/cipher | |
parent | eb8fd42d6aa3ed267c7444b114e02e64a567ca00 (diff) |
Split up asm modules into appropriate (topic-specific) modules, eg
hash/sha1_amd64 and cipher/serpent_ia32.
Remaining code in asm/ dir is for BigInt, so rename to bigint/ in prep for
all (or most) of BigInt being modularized.
Diffstat (limited to 'src/cipher')
-rw-r--r-- | src/cipher/serpent_ia32/serp_asm.S | 667 | ||||
-rw-r--r-- | src/cipher/serpent_ia32/serpent.cpp | 49 |
2 files changed, 716 insertions, 0 deletions
diff --git a/src/cipher/serpent_ia32/serp_asm.S b/src/cipher/serpent_ia32/serp_asm.S new file mode 100644 index 000000000..c8915382d --- /dev/null +++ b/src/cipher/serpent_ia32/serp_asm.S @@ -0,0 +1,667 @@ +/************************************************* +* Serpent Source File * +* (C) 1999-2007 Jack Lloyd * +*************************************************/ + +#include <botan/asm_macr.h> + +START_LISTING(serp_asm.S) + +#define SBOX_E1(A, B, C, D, T) \ + XOR(D, A) ; \ + ASSIGN(T, B) ; \ + AND(B, D) ; \ + XOR(T, C) ; \ + XOR(B, A) ; \ + OR(A, D) ; \ + XOR(A, T) ; \ + XOR(T, D) ; \ + XOR(D, C) ; \ + OR(C, B) ; \ + XOR(C, T) ; \ + NOT(T) ; \ + OR(T, B) ; \ + XOR(B, D) ; \ + XOR(B, T) ; \ + OR(D, A) ; \ + XOR(B, D) ; \ + XOR(T, D) ; \ + ASSIGN(D, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, T) ; + +#define SBOX_E2(A, B, C, D, T) \ + NOT(A) ; \ + NOT(C) ; \ + ASSIGN(T, A) ; \ + AND(A, B) ; \ + XOR(C, A) ; \ + OR(A, D) ; \ + XOR(D, C) ; \ + XOR(B, A) ; \ + XOR(A, T) ; \ + OR(T, B) ; \ + XOR(B, D) ; \ + OR(C, A) ; \ + AND(C, T) ; \ + XOR(A, B) ; \ + AND(B, C) ; \ + XOR(B, A) ; \ + AND(A, C) ; \ + XOR(T, A) ; \ + ASSIGN(A, C) ; \ + ASSIGN(C, D) ; \ + ASSIGN(D, B) ; \ + ASSIGN(B, T) ; + +#define SBOX_E3(A, B, C, D, T) \ + ASSIGN(T, A) ; \ + AND(A, C) ; \ + XOR(A, D) ; \ + XOR(C, B) ; \ + XOR(C, A) ; \ + OR(D, T) ; \ + XOR(D, B) ; \ + XOR(T, C) ; \ + ASSIGN(B, D) ; \ + OR(D, T) ; \ + XOR(D, A) ; \ + AND(A, B) ; \ + XOR(T, A) ; \ + XOR(B, D) ; \ + XOR(B, T) ; \ + NOT(T) ; \ + ASSIGN(A, C) ; \ + ASSIGN(C, B) ; \ + ASSIGN(B, D) ; \ + ASSIGN(D, T) ; + +#define SBOX_E4(A, B, C, D, T) \ + ASSIGN(T, A) ; \ + OR(A, D) ; \ + XOR(D, B) ; \ + AND(B, T) ; \ + XOR(T, C) ; \ + XOR(C, D) ; \ + AND(D, A) ; \ + OR(T, B) ; \ + XOR(D, T) ; \ + XOR(A, B) ; \ + AND(T, A) ; \ + XOR(B, D) ; \ + XOR(T, C) ; \ + OR(B, A) ; \ + XOR(B, C) ; \ + XOR(A, D) ; \ + ASSIGN(C, B) ; \ + OR(B, D) ; \ + XOR(B, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, C) ; \ + ASSIGN(C, D) ; \ + ASSIGN(D, T) ; + +#define SBOX_E5(A, B, C, D, T) \ + XOR(B, D) ; \ + NOT(D) ; \ + XOR(C, D) ; \ + XOR(D, A) ; \ + ASSIGN(T, B) ; \ + AND(B, D) ; \ + XOR(B, C) ; \ + XOR(T, D) ; \ + XOR(A, T) ; \ + AND(C, T) ; \ + XOR(C, A) ; \ + AND(A, B) ; \ + XOR(D, A) ; \ + OR(T, B) ; \ + XOR(T, A) ; \ + OR(A, D) ; \ + XOR(A, C) ; \ + AND(C, D) ; \ + NOT(A) ; \ + XOR(T, C) ; \ + ASSIGN(C, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, T) ; + +#define SBOX_E6(A, B, C, D, T) \ + XOR(A, B) ; \ + XOR(B, D) ; \ + NOT(D) ; \ + ASSIGN(T, B) ; \ + AND(B, A) ; \ + XOR(C, D) ; \ + XOR(B, C) ; \ + OR(C, T) ; \ + XOR(T, D) ; \ + AND(D, B) ; \ + XOR(D, A) ; \ + XOR(T, B) ; \ + XOR(T, C) ; \ + XOR(C, A) ; \ + AND(A, D) ; \ + NOT(C) ; \ + XOR(A, T) ; \ + OR(T, D) ; \ + XOR(T, C) ; \ + ASSIGN(C, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, D) ; \ + ASSIGN(D, T) ; + +#define SBOX_E7(A, B, C, D, T) \ + NOT(C) ; \ + ASSIGN(T, D) ; \ + AND(D, A) ; \ + XOR(A, T) ; \ + XOR(D, C) ; \ + OR(C, T) ; \ + XOR(B, D) ; \ + XOR(C, A) ; \ + OR(A, B) ; \ + XOR(C, B) ; \ + XOR(T, A) ; \ + OR(A, D) ; \ + XOR(A, C) ; \ + XOR(T, D) ; \ + XOR(T, A) ; \ + NOT(D) ; \ + AND(C, T) ; \ + XOR(C, D) ; \ + ASSIGN(D, C) ; \ + ASSIGN(C, T) ; + +#define SBOX_E8(A, B, C, D, T) \ + ASSIGN(T, B) ; \ + OR(B, C) ; \ + XOR(B, D) ; \ + XOR(T, C) ; \ + XOR(C, B) ; \ + OR(D, T) ; \ + AND(D, A) ; \ + XOR(T, C) ; \ + XOR(D, B) ; \ + OR(B, T) ; \ + XOR(B, A) ; \ + OR(A, T) ; \ + XOR(A, C) ; \ + XOR(B, T) ; \ + XOR(C, B) ; \ + AND(B, A) ; \ + XOR(B, T) ; \ + NOT(C) ; \ + OR(C, A) ; \ + XOR(T, C) ; \ + ASSIGN(C, B) ; \ + ASSIGN(B, D) ; \ + ASSIGN(D, A) ; \ + ASSIGN(A, T) ; + +#define SBOX_D1(A, B, C, D, T) \ + NOT(C) ; \ + ASSIGN(T, B) ; \ + OR(B, A) ; \ + NOT(T) ; \ + XOR(B, C) ; \ + OR(C, T) ; \ + XOR(B, D) ; \ + XOR(A, T) ; \ + XOR(C, A) ; \ + AND(A, D) ; \ + XOR(T, A) ; \ + OR(A, B) ; \ + XOR(A, C) ; \ + XOR(D, T) ; \ + XOR(C, B) ; \ + XOR(D, A) ; \ + XOR(D, B) ; \ + AND(C, D) ; \ + XOR(T, C) ; \ + ASSIGN(C, B) ; \ + ASSIGN(B, T) ; + +#define SBOX_D2(A, B, C, D, T) \ + ASSIGN(T, B) ; \ + XOR(B, D) ; \ + AND(D, B) ; \ + XOR(T, C) ; \ + XOR(D, A) ; \ + OR(A, B) ; \ + XOR(C, D) ; \ + XOR(A, T) ; \ + OR(A, C) ; \ + XOR(B, D) ; \ + XOR(A, B) ; \ + OR(B, D) ; \ + XOR(B, A) ; \ + NOT(T) ; \ + XOR(T, B) ; \ + OR(B, A) ; \ + XOR(B, A) ; \ + OR(B, T) ; \ + XOR(D, B) ; \ + ASSIGN(B, A) ; \ + ASSIGN(A, T) ; \ + ASSIGN(T, D) ; \ + ASSIGN(D, C) ; \ + ASSIGN(C, T) ; + +#define SBOX_D3(A, B, C, D, T) \ + XOR(C, D) ; \ + XOR(D, A) ; \ + ASSIGN(T, D) ; \ + AND(D, C) ; \ + XOR(D, B) ; \ + OR(B, C) ; \ + XOR(B, T) ; \ + AND(T, D) ; \ + XOR(C, D) ; \ + AND(T, A) ; \ + XOR(T, C) ; \ + AND(C, B) ; \ + OR(C, A) ; \ + NOT(D) ; \ + XOR(C, D) ; \ + XOR(A, D) ; \ + AND(A, B) ; \ + XOR(D, T) ; \ + XOR(D, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, T) ; + +#define SBOX_D4(A, B, C, D, T) \ + ASSIGN(T, C) ; \ + XOR(C, B) ; \ + XOR(A, C) ; \ + AND(T, C) ; \ + XOR(T, A) ; \ + AND(A, B) ; \ + XOR(B, D) ; \ + OR(D, T) ; \ + XOR(C, D) ; \ + XOR(A, D) ; \ + XOR(B, T) ; \ + AND(D, C) ; \ + XOR(D, B) ; \ + XOR(B, A) ; \ + OR(B, C) ; \ + XOR(A, D) ; \ + XOR(B, T) ; \ + XOR(A, B) ; \ + ASSIGN(T, A) ; \ + ASSIGN(A, C) ; \ + ASSIGN(C, D) ; \ + ASSIGN(D, T) ; + +#define SBOX_D5(A, B, C, D, T) \ + ASSIGN(T, C) ; \ + AND(C, D) ; \ + XOR(C, B) ; \ + OR(B, D) ; \ + AND(B, A) ; \ + XOR(T, C) ; \ + XOR(T, B) ; \ + AND(B, C) ; \ + NOT(A) ; \ + XOR(D, T) ; \ + XOR(B, D) ; \ + AND(D, A) ; \ + XOR(D, C) ; \ + XOR(A, B) ; \ + AND(C, A) ; \ + XOR(D, A) ; \ + XOR(C, T) ; \ + OR(C, D) ; \ + XOR(D, A) ; \ + XOR(C, B) ; \ + ASSIGN(B, D) ; \ + ASSIGN(D, T) ; + +#define SBOX_D6(A, B, C, D, T) \ + NOT(B) ; \ + ASSIGN(T, D) ; \ + XOR(C, B) ; \ + OR(D, A) ; \ + XOR(D, C) ; \ + OR(C, B) ; \ + AND(C, A) ; \ + XOR(T, D) ; \ + XOR(C, T) ; \ + OR(T, A) ; \ + XOR(T, B) ; \ + AND(B, C) ; \ + XOR(B, D) ; \ + XOR(T, C) ; \ + AND(D, T) ; \ + XOR(T, B) ; \ + XOR(D, T) ; \ + NOT(T) ; \ + XOR(D, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, T) ; \ + ASSIGN(T, D) ; \ + ASSIGN(D, C) ; \ + ASSIGN(C, T) ; + +#define SBOX_D7(A, B, C, D, T) \ + XOR(A, C) ; \ + ASSIGN(T, C) ; \ + AND(C, A) ; \ + XOR(T, D) ; \ + NOT(C) ; \ + XOR(D, B) ; \ + XOR(C, D) ; \ + OR(T, A) ; \ + XOR(A, C) ; \ + XOR(D, T) ; \ + XOR(T, B) ; \ + AND(B, D) ; \ + XOR(B, A) ; \ + XOR(A, D) ; \ + OR(A, C) ; \ + XOR(D, B) ; \ + XOR(T, A) ; \ + ASSIGN(A, B) ; \ + ASSIGN(B, C) ; \ + ASSIGN(C, T) ; + +#define SBOX_D8(A, B, C, D, T) \ + ASSIGN(T, C) ; \ + XOR(C, A) ; \ + AND(A, D) ; \ + OR(T, D) ; \ + NOT(C) ; \ + XOR(D, B) ; \ + OR(B, A) ; \ + XOR(A, C) ; \ + AND(C, T) ; \ + AND(D, T) ; \ + XOR(B, C) ; \ + XOR(C, A) ; \ + OR(A, C) ; \ + XOR(T, B) ; \ + XOR(A, D) ; \ + XOR(D, T) ; \ + OR(T, A) ; \ + XOR(D, C) ; \ + XOR(T, C) ; \ + ASSIGN(C, B) ; \ + ASSIGN(B, A) ; \ + ASSIGN(A, D) ; \ + ASSIGN(D, T) ; + +#define TRANSFORM(A, B, C, D, T) \ + ROTL_IMM(A, 13) ; \ + ROTL_IMM(C, 3) ; \ + SHL2_3(T, A) ; \ + XOR(B, A) ; \ + XOR(D, C) ; \ + XOR(B, C) ; \ + XOR(D, T) ; \ + ROTL_IMM(B, 1) ; \ + ROTL_IMM(D, 7) ; \ + ASSIGN(T, B) ; \ + SHL_IMM(T, 7) ; \ + XOR(A, B) ; \ + XOR(C, D) ; \ + XOR(A, D) ; \ + XOR(C, T) ; \ + ROTL_IMM(A, 5) ; \ + ROTL_IMM(C, 22) ; + +#define I_TRANSFORM(A, B, C, D, T) \ + ROTR_IMM(C, 22) ; \ + ROTR_IMM(A, 5) ; \ + ASSIGN(T, B) ; \ + SHL_IMM(T, 7) ; \ + XOR(A, B) ; \ + XOR(C, D) ; \ + XOR(A, D) ; \ + XOR(C, T) ; \ + ROTR_IMM(D, 7) ; \ + ROTR_IMM(B, 1) ; \ + SHL2_3(T, A) ; \ + XOR(B, C) ; \ + XOR(D, C) ; \ + XOR(B, A) ; \ + XOR(D, T) ; \ + ROTR_IMM(C, 3) ; \ + ROTR_IMM(A, 13) ; + +#define KEY_XOR(A, B, C, D, N) \ + XOR(A, ARRAY4(EDI, (4*N ))) ; \ + XOR(B, ARRAY4(EDI, (4*N+1))) ; \ + XOR(C, ARRAY4(EDI, (4*N+2))) ; \ + XOR(D, ARRAY4(EDI, (4*N+3))) ; + +/************************************************* +* Serpent Encryption * +*************************************************/ +START_FUNCTION(serpent_encrypt) + SPILL_REGS() +#define PUSHED 4 + + ASSIGN(EBP, ARG(1)) /* input block */ + ASSIGN(EAX, ARRAY4(EBP, 0)) + ASSIGN(EBX, ARRAY4(EBP, 1)) + ASSIGN(ECX, ARRAY4(EBP, 2)) + ASSIGN(EDX, ARRAY4(EBP, 3)) + + ASSIGN(EDI, ARG(3)) /* round keys */ + ZEROIZE(EBP) + +#define E_ROUND(A, B, C, D, T, N, SBOX) \ + KEY_XOR(A, B, C, D, N) \ + SBOX(A, B, C, D, T) \ + TRANSFORM(A, B, C, D, T) + + + E_ROUND(EAX, EBX, ECX, EDX, EBP, 0, SBOX_E1) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 1, SBOX_E2) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 2, SBOX_E3) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 3, SBOX_E4) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 4, SBOX_E5) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 5, SBOX_E6) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 6, SBOX_E7) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 7, SBOX_E8) + + E_ROUND(EAX, EBX, ECX, EDX, EBP, 8, SBOX_E1) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 9, SBOX_E2) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 10, SBOX_E3) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 11, SBOX_E4) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 12, SBOX_E5) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 13, SBOX_E6) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 14, SBOX_E7) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 15, SBOX_E8) + + E_ROUND(EAX, EBX, ECX, EDX, EBP, 16, SBOX_E1) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 17, SBOX_E2) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 18, SBOX_E3) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 19, SBOX_E4) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 20, SBOX_E5) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 21, SBOX_E6) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 22, SBOX_E7) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 23, SBOX_E8) + + E_ROUND(EAX, EBX, ECX, EDX, EBP, 24, SBOX_E1) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 25, SBOX_E2) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 26, SBOX_E3) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 27, SBOX_E4) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 28, SBOX_E5) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 29, SBOX_E6) + E_ROUND(EAX, EBX, ECX, EDX, EBP, 30, SBOX_E7) + + KEY_XOR(EAX, EBX, ECX, EDX, 31) + SBOX_E8(EAX, EBX, ECX, EDX, EBP) + KEY_XOR(EAX, EBX, ECX, EDX, 32) + + ASSIGN(EBP, ARG(2)) /* output block */ + ASSIGN(ARRAY4(EBP, 0), EAX) + ASSIGN(ARRAY4(EBP, 1), EBX) + ASSIGN(ARRAY4(EBP, 2), ECX) + ASSIGN(ARRAY4(EBP, 3), EDX) + + RESTORE_REGS() +#undef PUSHED +END_FUNCTION(serpent_encrypt) + +/************************************************* +* Serpent Decryption * +*************************************************/ +START_FUNCTION(serpent_decrypt) + SPILL_REGS() +#define PUSHED 4 + + ASSIGN(EBP, ARG(1)) /* input block */ + ASSIGN(EAX, ARRAY4(EBP, 0)) + ASSIGN(EBX, ARRAY4(EBP, 1)) + ASSIGN(ECX, ARRAY4(EBP, 2)) + ASSIGN(EDX, ARRAY4(EBP, 3)) + + ASSIGN(EDI, ARG(3)) /* round keys */ + + ZEROIZE(EBP) + +#define D_ROUND(A, B, C, D, T, N, SBOX) \ + I_TRANSFORM(A, B, C, D, T) \ + SBOX(A, B, C, D, T) \ + KEY_XOR(A, B, C, D, N) \ + + KEY_XOR(EAX, EBX, ECX, EDX, 32) + SBOX_D8(EAX, EBX, ECX, EDX, EBP) + KEY_XOR(EAX, EBX, ECX, EDX, 31) + + D_ROUND(EAX, EBX, ECX, EDX, EBP, 30, SBOX_D7) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 29, SBOX_D6) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 28, SBOX_D5) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 27, SBOX_D4) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 26, SBOX_D3) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 25, SBOX_D2) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 24, SBOX_D1) + + D_ROUND(EAX, EBX, ECX, EDX, EBP, 23, SBOX_D8) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 22, SBOX_D7) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 21, SBOX_D6) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 20, SBOX_D5) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 19, SBOX_D4) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 18, SBOX_D3) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 17, SBOX_D2) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 16, SBOX_D1) + + D_ROUND(EAX, EBX, ECX, EDX, EBP, 15, SBOX_D8) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 14, SBOX_D7) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 13, SBOX_D6) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 12, SBOX_D5) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 11, SBOX_D4) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 10, SBOX_D3) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 9, SBOX_D2) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 8, SBOX_D1) + + D_ROUND(EAX, EBX, ECX, EDX, EBP, 7, SBOX_D8) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 6, SBOX_D7) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 5, SBOX_D6) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 4, SBOX_D5) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 3, SBOX_D4) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 2, SBOX_D3) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 1, SBOX_D2) + D_ROUND(EAX, EBX, ECX, EDX, EBP, 0, SBOX_D1) + + ASSIGN(EBP, ARG(2)) /* output block */ + ASSIGN(ARRAY4(EBP, 0), EAX) + ASSIGN(ARRAY4(EBP, 1), EBX) + ASSIGN(ARRAY4(EBP, 2), ECX) + ASSIGN(ARRAY4(EBP, 3), EDX) + + RESTORE_REGS() +#undef PUSHED +END_FUNCTION(serpent_decrypt) + +/************************************************* +* Serpent Key Schedule * +*************************************************/ +START_FUNCTION(serpent_key_schedule) + SPILL_REGS() +#define PUSHED 4 + + ASSIGN(EDI, ARG(1)) /* round keys */ + ASSIGN(ESI, IMM(8)) + ADD_IMM(EDI, 32) + +START_LOOP(.EXPANSION) + ASSIGN(EAX, ARRAY4(EDI, -1)) + ASSIGN(EBX, ARRAY4(EDI, -3)) + ASSIGN(ECX, ARRAY4(EDI, -5)) + ASSIGN(EDX, ARRAY4(EDI, -8)) + + ASSIGN(EBP, ESI) + SUB_IMM(EBP, 8) + XOR(EBP, IMM(0x9E3779B9)) + XOR(EAX, EBX) + XOR(ECX, EDX) + XOR(EAX, EBP) + XOR(EAX, ECX) + + ROTL_IMM(EAX, 11) + + ASSIGN(ARRAY4(EDI, 0), EAX) + + ADD_IMM(ESI, 1) + ADD_IMM(EDI, 4) +LOOP_UNTIL_EQ(ESI, 140, .EXPANSION) + + ASSIGN(EDI, ARG(1)) /* round keys */ + +#define LOAD_AND_SBOX(MSG, SBOX) \ + ASSIGN(EAX, ARRAY4(EDI, (4*MSG+ 8))) ; \ + ASSIGN(EBX, ARRAY4(EDI, (4*MSG+ 9))) ; \ + ASSIGN(ECX, ARRAY4(EDI, (4*MSG+10))) ; \ + ASSIGN(EDX, ARRAY4(EDI, (4*MSG+11))) ; \ + SBOX(EAX, EBX, ECX, EDX, EBP) ; \ + ASSIGN(ARRAY4(EDI, (4*MSG+ 8)), EAX) ; \ + ASSIGN(ARRAY4(EDI, (4*MSG+ 9)), EBX) ; \ + ASSIGN(ARRAY4(EDI, (4*MSG+10)), ECX) ; \ + ASSIGN(ARRAY4(EDI, (4*MSG+11)), EDX) + + LOAD_AND_SBOX( 0, SBOX_E4) + LOAD_AND_SBOX( 1, SBOX_E3) + LOAD_AND_SBOX( 2, SBOX_E2) + LOAD_AND_SBOX( 3, SBOX_E1) + + LOAD_AND_SBOX( 4, SBOX_E8) + LOAD_AND_SBOX( 5, SBOX_E7) + LOAD_AND_SBOX( 6, SBOX_E6) + LOAD_AND_SBOX( 7, SBOX_E5) + LOAD_AND_SBOX( 8, SBOX_E4) + LOAD_AND_SBOX( 9, SBOX_E3) + LOAD_AND_SBOX(10, SBOX_E2) + LOAD_AND_SBOX(11, SBOX_E1) + + LOAD_AND_SBOX(12, SBOX_E8) + LOAD_AND_SBOX(13, SBOX_E7) + LOAD_AND_SBOX(14, SBOX_E6) + LOAD_AND_SBOX(15, SBOX_E5) + LOAD_AND_SBOX(16, SBOX_E4) + LOAD_AND_SBOX(17, SBOX_E3) + LOAD_AND_SBOX(18, SBOX_E2) + LOAD_AND_SBOX(19, SBOX_E1) + + LOAD_AND_SBOX(20, SBOX_E8) + LOAD_AND_SBOX(21, SBOX_E7) + LOAD_AND_SBOX(22, SBOX_E6) + LOAD_AND_SBOX(23, SBOX_E5) + LOAD_AND_SBOX(24, SBOX_E4) + LOAD_AND_SBOX(25, SBOX_E3) + LOAD_AND_SBOX(26, SBOX_E2) + LOAD_AND_SBOX(27, SBOX_E1) + + LOAD_AND_SBOX(28, SBOX_E8) + LOAD_AND_SBOX(29, SBOX_E7) + LOAD_AND_SBOX(30, SBOX_E6) + LOAD_AND_SBOX(31, SBOX_E5) + LOAD_AND_SBOX(32, SBOX_E4) + + RESTORE_REGS() +#undef PUSHED +END_FUNCTION(serpent_key_schedule) diff --git a/src/cipher/serpent_ia32/serpent.cpp b/src/cipher/serpent_ia32/serpent.cpp new file mode 100644 index 000000000..aacb72b0f --- /dev/null +++ b/src/cipher/serpent_ia32/serpent.cpp @@ -0,0 +1,49 @@ +/************************************************* +* Serpent Source File * +* (C) 1999-2007 Jack Lloyd * +*************************************************/ + +#include <botan/serpent.h> +#include <botan/loadstor.h> + +namespace Botan { + +extern "C" { + +void serpent_encrypt(const byte[16], byte[16], const u32bit[132]); +void serpent_decrypt(const byte[16], byte[16], const u32bit[132]); +void serpent_key_schedule(u32bit[140]); + +} + +/************************************************* +* Serpent Encryption * +*************************************************/ +void Serpent::enc(const byte in[], byte out[]) const + { + serpent_encrypt(in, out, round_key); + } + +/************************************************* +* Serpent Decryption * +*************************************************/ +void Serpent::dec(const byte in[], byte out[]) const + { + serpent_decrypt(in, out, round_key); + } + +/************************************************* +* Serpent Key Schedule * +*************************************************/ +void Serpent::key(const byte key[], u32bit length) + { + SecureBuffer<u32bit, 140> W; + for(u32bit j = 0; j != length / 4; ++j) + W[j] = make_u32bit(key[4*j+3], key[4*j+2], key[4*j+1], key[4*j]); + W[length / 4] |= u32bit(1) << ((length%4)*8); + + serpent_key_schedule(W); + round_key.copy(W + 8, 132); + } + +} |