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author | Niels Möller <nisse@lysator.liu.se> | 2013-05-16 11:00:44 +0200 |
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committer | Niels Möller <nisse@lysator.liu.se> | 2013-05-16 11:00:44 +0200 |
commit | 8136e192d9da6d501a9d19b81e63c15b8c9729b9 (patch) | |
tree | 63c6435722ef4bf90505748babce9f22cf21cf4f /arm | |
parent | 8b1d9263f5f26bf30c1678e9baa533365453f01d (diff) | |
download | nettle-8136e192d9da6d501a9d19b81e63c15b8c9729b9.tar.gz |
arm: Moved AES round macros from aes.m4 to the files using them.
Diffstat (limited to 'arm')
-rw-r--r-- | arm/aes.m4 | 123 | ||||
-rw-r--r-- | arm/v6/aes-decrypt-internal.asm | 61 | ||||
-rw-r--r-- | arm/v6/aes-encrypt-internal.asm | 63 |
3 files changed, 124 insertions, 123 deletions
@@ -23,129 +23,6 @@ define(<AES_STORE>, < strb $2, [$1], #+1 >) -C 53 instr. -C It's tempting to use eor with rotation, but that's slower. -C AES_ENCRYPT_ROUND(x0,x1,x2,x3,w0,w1,w2,w3,key) -define(<AES_ENCRYPT_ROUND>, < - uxtb T0, $1 - ldr $5, [TABLE, T0, lsl #2] - uxtb T0, $2 - ldr $6, [TABLE, T0, lsl #2] - uxtb T0, $3 - ldr $7, [TABLE, T0, lsl #2] - uxtb T0, $4 - ldr $8, [TABLE, T0, lsl #2] - - uxtb T0, $2, ror #8 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $3, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $4, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $1, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $8, $8, T0 - - uxtb T0, $3, ror #16 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $4, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $1, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $2, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $8, $8, T0 - - uxtb T0, $4, ror #24 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $1, ror #24 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $2, ror #24 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $3, ror #24 - ldr T0, [TABLE, T0, lsl #2] - - ldm $9!, {$1,$2,$3,$4} - eor $8, $8, T0 - sub TABLE, TABLE, #3072 - eor $5, $5, $1 - eor $6, $6, $2 - eor $7, $7, $3 - eor $8, $8, $4 ->) - -define(<AES_DECRYPT_ROUND>, < - uxtb T0, $1 - ldr $5, [TABLE, T0, lsl #2] - uxtb T0, $2 - ldr $6, [TABLE, T0, lsl #2] - uxtb T0, $3 - ldr $7, [TABLE, T0, lsl #2] - uxtb T0, $4 - ldr $8, [TABLE, T0, lsl #2] - - uxtb T0, $4, ror #8 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $1, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $2, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $3, ror #8 - ldr T0, [TABLE, T0, lsl #2] - eor $8, $8, T0 - - uxtb T0, $3, ror #16 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $4, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $1, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $2, ror #16 - ldr T0, [TABLE, T0, lsl #2] - eor $8, $8, T0 - - uxtb T0, $2, ror #24 - add TABLE, TABLE, #1024 - ldr T0, [TABLE, T0, lsl #2] - eor $5, $5, T0 - uxtb T0, $3, ror #24 - ldr T0, [TABLE, T0, lsl #2] - eor $6, $6, T0 - uxtb T0, $4, ror #24 - ldr T0, [TABLE, T0, lsl #2] - eor $7, $7, T0 - uxtb T0, $1, ror #24 - ldr T0, [TABLE, T0, lsl #2] - - ldm $9!, {$1,$2,$3,$4} - eor $8, $8, T0 - sub TABLE, TABLE, #3072 - eor $5, $5, $1 - eor $6, $6, $2 - eor $7, $7, $3 - eor $8, $8, $4 ->) - C AES_FINAL_ROUND(a,b,c,d,key,res) define(<AES_FINAL_ROUND>, < uxtb T0, $1 diff --git a/arm/v6/aes-decrypt-internal.asm b/arm/v6/aes-decrypt-internal.asm index 651636cc..0c8cfc5e 100644 --- a/arm/v6/aes-decrypt-internal.asm +++ b/arm/v6/aes-decrypt-internal.asm @@ -43,6 +43,67 @@ define(<X2>, <r12>) define(<X3>, <r14>) C lr +C AES_DECRYPT_ROUND(x0,x1,x2,x3,w0,w1,w2,w3,key) +define(<AES_DECRYPT_ROUND>, < + uxtb T0, $1 + ldr $5, [TABLE, T0, lsl #2] + uxtb T0, $2 + ldr $6, [TABLE, T0, lsl #2] + uxtb T0, $3 + ldr $7, [TABLE, T0, lsl #2] + uxtb T0, $4 + ldr $8, [TABLE, T0, lsl #2] + + uxtb T0, $4, ror #8 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $1, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $2, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $3, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $8, $8, T0 + + uxtb T0, $3, ror #16 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $4, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $1, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $2, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $8, $8, T0 + + uxtb T0, $2, ror #24 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $3, ror #24 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $4, ror #24 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $1, ror #24 + ldr T0, [TABLE, T0, lsl #2] + + ldm $9!, {$1,$2,$3,$4} + eor $8, $8, T0 + sub TABLE, TABLE, #3072 + eor $5, $5, $1 + eor $6, $6, $2 + eor $7, $7, $3 + eor $8, $8, $4 +>) + .file "aes-decrypt-internal.asm" C _aes_decrypt(struct aes_context *ctx, diff --git a/arm/v6/aes-encrypt-internal.asm b/arm/v6/aes-encrypt-internal.asm index 15cf1bb0..69556a35 100644 --- a/arm/v6/aes-encrypt-internal.asm +++ b/arm/v6/aes-encrypt-internal.asm @@ -45,6 +45,69 @@ define(<X2>, <r12>) define(<X3>, <r14>) C lr +C 53 instr. +C It's tempting to use eor with rotation, but that's slower. +C AES_ENCRYPT_ROUND(x0,x1,x2,x3,w0,w1,w2,w3,key) +define(<AES_ENCRYPT_ROUND>, < + uxtb T0, $1 + ldr $5, [TABLE, T0, lsl #2] + uxtb T0, $2 + ldr $6, [TABLE, T0, lsl #2] + uxtb T0, $3 + ldr $7, [TABLE, T0, lsl #2] + uxtb T0, $4 + ldr $8, [TABLE, T0, lsl #2] + + uxtb T0, $2, ror #8 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $3, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $4, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $1, ror #8 + ldr T0, [TABLE, T0, lsl #2] + eor $8, $8, T0 + + uxtb T0, $3, ror #16 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $4, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $1, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $2, ror #16 + ldr T0, [TABLE, T0, lsl #2] + eor $8, $8, T0 + + uxtb T0, $4, ror #24 + add TABLE, TABLE, #1024 + ldr T0, [TABLE, T0, lsl #2] + eor $5, $5, T0 + uxtb T0, $1, ror #24 + ldr T0, [TABLE, T0, lsl #2] + eor $6, $6, T0 + uxtb T0, $2, ror #24 + ldr T0, [TABLE, T0, lsl #2] + eor $7, $7, T0 + uxtb T0, $3, ror #24 + ldr T0, [TABLE, T0, lsl #2] + + ldm $9!, {$1,$2,$3,$4} + eor $8, $8, T0 + sub TABLE, TABLE, #3072 + eor $5, $5, $1 + eor $6, $6, $2 + eor $7, $7, $3 + eor $8, $8, $4 +>) + .file "aes-encrypt-internal.asm" C _aes_encrypt(struct aes_context *ctx, |