diff options
Diffstat (limited to 'src/crypto/isa-l/isa-l_crypto/aes/aarch64/gcm_precomp.S')
| -rw-r--r-- | src/crypto/isa-l/isa-l_crypto/aes/aarch64/gcm_precomp.S | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/crypto/isa-l/isa-l_crypto/aes/aarch64/gcm_precomp.S b/src/crypto/isa-l/isa-l_crypto/aes/aarch64/gcm_precomp.S new file mode 100644 index 000000000..e555c9798 --- /dev/null +++ b/src/crypto/isa-l/isa-l_crypto/aes/aarch64/gcm_precomp.S @@ -0,0 +1,83 @@ +/********************************************************************** + Copyright(c) 2021 Arm Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Arm Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**********************************************************************/ +/* +void aes_gcm_precomp(struct gcm_key_data *key_data); +*/ + declare_var_generic_reg key_data ,0 + declare_var_generic_reg temp0 ,1 + declare_var_generic_reg hashkey_base,0 + declare_var_generic_reg hashkey_addr,1 + + declare_var_vector_reg Low ,0 + declare_var_vector_reg Middle0 ,1 + declare_var_vector_reg Middle1 ,2 + declare_var_vector_reg High ,3 + declare_var_vector_reg HashKeyIter ,4 + declare_var_vector_reg HashKey ,5 + declare_var_vector_reg HashKeyExt ,6 + declare_var_vector_reg Poly ,7 + declare_var_vector_reg Zero ,31 + +START_FUNC(precomp,KEY_LEN,_) + load_aes_keys key_data + mov temp0,0x87 + eor vZero.16b,vZero.16b,vZero.16b + eor vHashKey.16b,vHashKey.16b,vHashKey.16b + dup vPoly.2d,temp0 + aes_encrypt_block HashKey + add hashkey_addr,hashkey_base,(HASHKEY_TOTAL_NUM-1)*32 + rbit vHashKey.16b,vHashKey.16b + ext vHashKeyExt.16b,vHashKey.16b,vHashKey.16b,8 + mov vHashKeyIter.16b,vHashKey.16b + stp qHashKey,qHashKeyExt,[hashkey_addr],-32 + +1: + pmull vMiddle0.1q,vHashKeyIter.1d,vHashKeyExt.1d + pmull2 vMiddle1.1q,vHashKeyIter.2d,vHashKeyExt.2d + pmull vLow.1q ,vHashKeyIter.1d,vHashKey.1d + eor vMiddle0.16b,vMiddle0.16b,vMiddle1.16b + pmull2 vHigh.1q ,vHashKeyIter.2d,vHashKey.2d + ext vMiddle1.16b,vMiddle0.16b,vZero.16b,8 //high + ext vMiddle0.16b,vZero.16b,vMiddle0.16b,8 //low + eor vHigh.16b ,vHigh.16b,vMiddle1.16b + eor vLow.16b ,vLow.16b ,vMiddle0.16b + pmull2 vMiddle0.1q ,vHigh.2d ,vPoly.2d + ext vMiddle1.16b,vMiddle0.16b,vZero.16b,8 //high + ext vMiddle0.16b,vZero.16b,vMiddle0.16b,8 //low + eor vHigh.16b ,vHigh.16b,vMiddle1.16b + eor vLow.16b ,vLow.16b ,vMiddle0.16b + pmull vMiddle0.1q ,vHigh.1d ,vPoly.1d + eor vHashKeyIter.16b,vLow.16b,vMiddle0.16b + ext vLow.16b,vHashKeyIter.16b,vHashKeyIter.16b,8 + stp qHashKeyIter,qLow,[hashkey_addr],-32 + cmp hashkey_addr,hashkey_base + bcs 1b + + ret +END_FUNC(precomp,KEY_LEN,_) |