# salsa20_pm.s version 20051229 # D. J. Bernstein # Public domain. # enter ECRYPT_encrypt_bytes .text .p2align 5 .globl ECRYPT_encrypt_bytes ECRYPT_encrypt_bytes: mov %esp,%eax and $31,%eax add $256,%eax sub %eax,%esp # eax_stack = eax movl %eax,80(%esp) # ebx_stack = ebx movl %ebx,84(%esp) # esi_stack = esi movl %esi,88(%esp) # edi_stack = edi movl %edi,92(%esp) # ebp_stack = ebp movl %ebp,96(%esp) # x = arg1 movl 4(%esp,%eax),%edx # m = arg2 movl 8(%esp,%eax),%esi # out = arg3 movl 12(%esp,%eax),%edi # bytes = arg4 movl 16(%esp,%eax),%ebx # bytes -= 0 sub $0,%ebx # goto done if unsigned<= jbe ._done ._start: # in0 = *(uint32 *) (x + 0) movl 0(%edx),%eax # in1 = *(uint32 *) (x + 4) movl 4(%edx),%ecx # in2 = *(uint32 *) (x + 8) movl 8(%edx),%ebp # j0 = in0 movl %eax,164(%esp) # in3 = *(uint32 *) (x + 12) movl 12(%edx),%eax # j1 = in1 movl %ecx,168(%esp) # in4 = *(uint32 *) (x + 16) movl 16(%edx),%ecx # j2 = in2 movl %ebp,172(%esp) # in5 = *(uint32 *) (x + 20) movl 20(%edx),%ebp # j3 = in3 movl %eax,176(%esp) # in6 = *(uint32 *) (x + 24) movl 24(%edx),%eax # j4 = in4 movl %ecx,180(%esp) # in7 = *(uint32 *) (x + 28) movl 28(%edx),%ecx # j5 = in5 movl %ebp,184(%esp) # in8 = *(uint32 *) (x + 32) movl 32(%edx),%ebp # j6 = in6 movl %eax,188(%esp) # in9 = *(uint32 *) (x + 36) movl 36(%edx),%eax # j7 = in7 movl %ecx,192(%esp) # in10 = *(uint32 *) (x + 40) movl 40(%edx),%ecx # j8 = in8 movl %ebp,196(%esp) # in11 = *(uint32 *) (x + 44) movl 44(%edx),%ebp # j9 = in9 movl %eax,200(%esp) # in12 = *(uint32 *) (x + 48) movl 48(%edx),%eax # j10 = in10 movl %ecx,204(%esp) # in13 = *(uint32 *) (x + 52) movl 52(%edx),%ecx # j11 = in11 movl %ebp,208(%esp) # in14 = *(uint32 *) (x + 56) movl 56(%edx),%ebp # j12 = in12 movl %eax,212(%esp) # in15 = *(uint32 *) (x + 60) movl 60(%edx),%eax # j13 = in13 movl %ecx,216(%esp) # j14 = in14 movl %ebp,220(%esp) # j15 = in15 movl %eax,224(%esp) # x_backup = x movl %edx,64(%esp) ._bytesatleast1: # bytes - 64 cmp $64,%ebx # goto nocopy if unsigned>= jae ._nocopy # ctarget = out movl %edi,228(%esp) # out = &tmp leal 0(%esp),%edi # i = bytes mov %ebx,%ecx # while (i) { *out++ = *m++; --i } rep movsb # out = &tmp leal 0(%esp),%edi # m = &tmp leal 0(%esp),%esi ._nocopy: # out_backup = out movl %edi,72(%esp) # m_backup = m movl %esi,68(%esp) # bytes_backup = bytes movl %ebx,76(%esp) # in0 = j0 movl 164(%esp),%eax # in1 = j1 movl 168(%esp),%ecx # in2 = j2 movl 172(%esp),%edx # in3 = j3 movl 176(%esp),%ebx # x0 = in0 movl %eax,100(%esp) # x1 = in1 movl %ecx,104(%esp) # x2 = in2 movl %edx,108(%esp) # x3 = in3 movl %ebx,112(%esp) # in4 = j4 movl 180(%esp),%eax # in5 = j5 movl 184(%esp),%ecx # in6 = j6 movl 188(%esp),%edx # in7 = j7 movl 192(%esp),%ebx # x4 = in4 movl %eax,116(%esp) # x5 = in5 movl %ecx,120(%esp) # x6 = in6 movl %edx,124(%esp) # x7 = in7 movl %ebx,128(%esp) # in8 = j8 movl 196(%esp),%eax # in9 = j9 movl 200(%esp),%ecx # in10 = j10 movl 204(%esp),%edx # in11 = j11 movl 208(%esp),%ebx # x8 = in8 movl %eax,132(%esp) # x9 = in9 movl %ecx,136(%esp) # x10 = in10 movl %edx,140(%esp) # x11 = in11 movl %ebx,144(%esp) # in12 = j12 movl 212(%esp),%eax # in13 = j13 movl 216(%esp),%ecx # in14 = j14 movl 220(%esp),%edx # in15 = j15 movl 224(%esp),%ebx # x12 = in12 movl %eax,148(%esp) # x13 = in13 movl %ecx,152(%esp) # x14 = in14 movl %edx,156(%esp) # x15 = in15 movl %ebx,160(%esp) # i = 20 mov $20,%ebp # p = x0 movl 100(%esp),%eax # s = x5 movl 120(%esp),%ecx # t = x10 movl 140(%esp),%edx # w = x15 movl 160(%esp),%ebx ._mainloop: # x0 = p movl %eax,100(%esp) # x10 = t movl %edx,140(%esp) # p += x12 addl 148(%esp),%eax # x5 = s movl %ecx,120(%esp) # t += x6 addl 124(%esp),%edx # x15 = w movl %ebx,160(%esp) # r = x1 movl 104(%esp),%esi # r += s add %ecx,%esi # v = x11 movl 144(%esp),%edi # v += w add %ebx,%edi # p <<<= 7 rol $7,%eax # p ^= x4 xorl 116(%esp),%eax # t <<<= 7 rol $7,%edx # t ^= x14 xorl 156(%esp),%edx # r <<<= 7 rol $7,%esi # r ^= x9 xorl 136(%esp),%esi # v <<<= 7 rol $7,%edi # v ^= x3 xorl 112(%esp),%edi # x4 = p movl %eax,116(%esp) # x14 = t movl %edx,156(%esp) # p += x0 addl 100(%esp),%eax # x9 = r movl %esi,136(%esp) # t += x10 addl 140(%esp),%edx # x3 = v movl %edi,112(%esp) # p <<<= 9 rol $9,%eax # p ^= x8 xorl 132(%esp),%eax # t <<<= 9 rol $9,%edx # t ^= x2 xorl 108(%esp),%edx # s += r add %esi,%ecx # s <<<= 9 rol $9,%ecx # s ^= x13 xorl 152(%esp),%ecx # w += v add %edi,%ebx # w <<<= 9 rol $9,%ebx # w ^= x7 xorl 128(%esp),%ebx # x8 = p movl %eax,132(%esp) # x2 = t movl %edx,108(%esp) # p += x4 addl 116(%esp),%eax # x13 = s movl %ecx,152(%esp) # t += x14 addl 156(%esp),%edx # x7 = w movl %ebx,128(%esp) # p <<<= 13 rol $13,%eax # p ^= x12 xorl 148(%esp),%eax # t <<<= 13 rol $13,%edx # t ^= x6 xorl 124(%esp),%edx # r += s add %ecx,%esi # r <<<= 13 rol $13,%esi # r ^= x1 xorl 104(%esp),%esi # v += w add %ebx,%edi # v <<<= 13 rol $13,%edi # v ^= x11 xorl 144(%esp),%edi # x12 = p movl %eax,148(%esp) # x6 = t movl %edx,124(%esp) # p += x8 addl 132(%esp),%eax # x1 = r movl %esi,104(%esp) # t += x2 addl 108(%esp),%edx # x11 = v movl %edi,144(%esp) # p <<<= 18 rol $18,%eax # p ^= x0 xorl 100(%esp),%eax # t <<<= 18 rol $18,%edx # t ^= x10 xorl 140(%esp),%edx # s += r add %esi,%ecx # s <<<= 18 rol $18,%ecx # s ^= x5 xorl 120(%esp),%ecx # w += v add %edi,%ebx # w <<<= 18 rol $18,%ebx # w ^= x15 xorl 160(%esp),%ebx # x0 = p movl %eax,100(%esp) # x10 = t movl %edx,140(%esp) # p += x3 addl 112(%esp),%eax # p <<<= 7 rol $7,%eax # x5 = s movl %ecx,120(%esp) # t += x9 addl 136(%esp),%edx # x15 = w movl %ebx,160(%esp) # r = x4 movl 116(%esp),%esi # r += s add %ecx,%esi # v = x14 movl 156(%esp),%edi # v += w add %ebx,%edi # p ^= x1 xorl 104(%esp),%eax # t <<<= 7 rol $7,%edx # t ^= x11 xorl 144(%esp),%edx # r <<<= 7 rol $7,%esi # r ^= x6 xorl 124(%esp),%esi # v <<<= 7 rol $7,%edi # v ^= x12 xorl 148(%esp),%edi # x1 = p movl %eax,104(%esp) # x11 = t movl %edx,144(%esp) # p += x0 addl 100(%esp),%eax # x6 = r movl %esi,124(%esp) # t += x10 addl 140(%esp),%edx # x12 = v movl %edi,148(%esp) # p <<<= 9 rol $9,%eax # p ^= x2 xorl 108(%esp),%eax # t <<<= 9 rol $9,%edx # t ^= x8 xorl 132(%esp),%edx # s += r add %esi,%ecx # s <<<= 9 rol $9,%ecx # s ^= x7 xorl 128(%esp),%ecx # w += v add %edi,%ebx # w <<<= 9 rol $9,%ebx # w ^= x13 xorl 152(%esp),%ebx # x2 = p movl %eax,108(%esp) # x8 = t movl %edx,132(%esp) # p += x1 addl 104(%esp),%eax # x7 = s movl %ecx,128(%esp) # t += x11 addl 144(%esp),%edx # x13 = w movl %ebx,152(%esp) # p <<<= 13 rol $13,%eax # p ^= x3 xorl 112(%esp),%eax # t <<<= 13 rol $13,%edx # t ^= x9 xorl 136(%esp),%edx # r += s add %ecx,%esi # r <<<= 13 rol $13,%esi # r ^= x4 xorl 116(%esp),%esi # v += w add %ebx,%edi # v <<<= 13 rol $13,%edi # v ^= x14 xorl 156(%esp),%edi # x3 = p movl %eax,112(%esp) # x9 = t movl %edx,136(%esp) # p += x2 addl 108(%esp),%eax # x4 = r movl %esi,116(%esp) # t += x8 addl 132(%esp),%edx # x14 = v movl %edi,156(%esp) # p <<<= 18 rol $18,%eax # p ^= x0 xorl 100(%esp),%eax # t <<<= 18 rol $18,%edx # t ^= x10 xorl 140(%esp),%edx # s += r add %esi,%ecx # s <<<= 18 rol $18,%ecx # s ^= x5 xorl 120(%esp),%ecx # w += v add %edi,%ebx # w <<<= 18 rol $18,%ebx # w ^= x15 xorl 160(%esp),%ebx # x0 = p movl %eax,100(%esp) # x10 = t movl %edx,140(%esp) # p += x12 addl 148(%esp),%eax # x5 = s movl %ecx,120(%esp) # t += x6 addl 124(%esp),%edx # x15 = w movl %ebx,160(%esp) # r = x1 movl 104(%esp),%esi # r += s add %ecx,%esi # v = x11 movl 144(%esp),%edi # v += w add %ebx,%edi # p <<<= 7 rol $7,%eax # p ^= x4 xorl 116(%esp),%eax # t <<<= 7 rol $7,%edx # t ^= x14 xorl 156(%esp),%edx # r <<<= 7 rol $7,%esi # r ^= x9 xorl 136(%esp),%esi # v <<<= 7 rol $7,%edi # v ^= x3 xorl 112(%esp),%edi # x4 = p movl %eax,116(%esp) # x14 = t movl %edx,156(%esp) # p += x0 addl 100(%esp),%eax # x9 = r movl %esi,136(%esp) # t += x10 addl 140(%esp),%edx # x3 = v movl %edi,112(%esp) # p <<<= 9 rol $9,%eax # p ^= x8 xorl 132(%esp),%eax # t <<<= 9 rol $9,%edx # t ^= x2 xorl 108(%esp),%edx # s += r add %esi,%ecx # s <<<= 9 rol $9,%ecx # s ^= x13 xorl 152(%esp),%ecx # w += v add %edi,%ebx # w <<<= 9 rol $9,%ebx # w ^= x7 xorl 128(%esp),%ebx # x8 = p movl %eax,132(%esp) # x2 = t movl %edx,108(%esp) # p += x4 addl 116(%esp),%eax # x13 = s movl %ecx,152(%esp) # t += x14 addl 156(%esp),%edx # x7 = w movl %ebx,128(%esp) # p <<<= 13 rol $13,%eax # p ^= x12 xorl 148(%esp),%eax # t <<<= 13 rol $13,%edx # t ^= x6 xorl 124(%esp),%edx # r += s add %ecx,%esi # r <<<= 13 rol $13,%esi # r ^= x1 xorl 104(%esp),%esi # v += w add %ebx,%edi # v <<<= 13 rol $13,%edi # v ^= x11 xorl 144(%esp),%edi # x12 = p movl %eax,148(%esp) # x6 = t movl %edx,124(%esp) # p += x8 addl 132(%esp),%eax # x1 = r movl %esi,104(%esp) # t += x2 addl 108(%esp),%edx # x11 = v movl %edi,144(%esp) # p <<<= 18 rol $18,%eax # p ^= x0 xorl 100(%esp),%eax # t <<<= 18 rol $18,%edx # t ^= x10 xorl 140(%esp),%edx # s += r add %esi,%ecx # s <<<= 18 rol $18,%ecx # s ^= x5 xorl 120(%esp),%ecx # w += v add %edi,%ebx # w <<<= 18 rol $18,%ebx # w ^= x15 xorl 160(%esp),%ebx # x0 = p movl %eax,100(%esp) # x10 = t movl %edx,140(%esp) # p += x3 addl 112(%esp),%eax # p <<<= 7 rol $7,%eax # x5 = s movl %ecx,120(%esp) # t += x9 addl 136(%esp),%edx # x15 = w movl %ebx,160(%esp) # r = x4 movl 116(%esp),%esi # r += s add %ecx,%esi # v = x14 movl 156(%esp),%edi # v += w add %ebx,%edi # p ^= x1 xorl 104(%esp),%eax # t <<<= 7 rol $7,%edx # t ^= x11 xorl 144(%esp),%edx # r <<<= 7 rol $7,%esi # r ^= x6 xorl 124(%esp),%esi # v <<<= 7 rol $7,%edi # v ^= x12 xorl 148(%esp),%edi # x1 = p movl %eax,104(%esp) # x11 = t movl %edx,144(%esp) # p += x0 addl 100(%esp),%eax # x6 = r movl %esi,124(%esp) # t += x10 addl 140(%esp),%edx # x12 = v movl %edi,148(%esp) # p <<<= 9 rol $9,%eax # p ^= x2 xorl 108(%esp),%eax # t <<<= 9 rol $9,%edx # t ^= x8 xorl 132(%esp),%edx # s += r add %esi,%ecx # s <<<= 9 rol $9,%ecx # s ^= x7 xorl 128(%esp),%ecx # w += v add %edi,%ebx # w <<<= 9 rol $9,%ebx # w ^= x13 xorl 152(%esp),%ebx # x2 = p movl %eax,108(%esp) # x8 = t movl %edx,132(%esp) # p += x1 addl 104(%esp),%eax # x7 = s movl %ecx,128(%esp) # t += x11 addl 144(%esp),%edx # x13 = w movl %ebx,152(%esp) # p <<<= 13 rol $13,%eax # p ^= x3 xorl 112(%esp),%eax # t <<<= 13 rol $13,%edx # t ^= x9 xorl 136(%esp),%edx # r += s add %ecx,%esi # r <<<= 13 rol $13,%esi # r ^= x4 xorl 116(%esp),%esi # v += w add %ebx,%edi # v <<<= 13 rol $13,%edi # v ^= x14 xorl 156(%esp),%edi # x3 = p movl %eax,112(%esp) # x9 = t movl %edx,136(%esp) # p += x2 addl 108(%esp),%eax # x4 = r movl %esi,116(%esp) # t += x8 addl 132(%esp),%edx # x14 = v movl %edi,156(%esp) # p <<<= 18 rol $18,%eax # p ^= x0 xorl 100(%esp),%eax # t <<<= 18 rol $18,%edx # t ^= x10 xorl 140(%esp),%edx # s += r add %esi,%ecx # s <<<= 18 rol $18,%ecx # s ^= x5 xorl 120(%esp),%ecx # w += v add %edi,%ebx # w <<<= 18 rol $18,%ebx # w ^= x15 xorl 160(%esp),%ebx # i -= 4 sub $4,%ebp # goto mainloop if unsigned > ja ._mainloop # x0 = p movl %eax,100(%esp) # x5 = s movl %ecx,120(%esp) # x10 = t movl %edx,140(%esp) # x15 = w movl %ebx,160(%esp) # out = out_backup movl 72(%esp),%edi # m = m_backup movl 68(%esp),%esi # in0 = x0 movl 100(%esp),%eax # in1 = x1 movl 104(%esp),%ecx # in0 += j0 addl 164(%esp),%eax # in1 += j1 addl 168(%esp),%ecx # in0 ^= *(uint32 *) (m + 0) xorl 0(%esi),%eax # in1 ^= *(uint32 *) (m + 4) xorl 4(%esi),%ecx # *(uint32 *) (out + 0) = in0 movl %eax,0(%edi) # *(uint32 *) (out + 4) = in1 movl %ecx,4(%edi) # in2 = x2 movl 108(%esp),%eax # in3 = x3 movl 112(%esp),%ecx # in2 += j2 addl 172(%esp),%eax # in3 += j3 addl 176(%esp),%ecx # in2 ^= *(uint32 *) (m + 8) xorl 8(%esi),%eax # in3 ^= *(uint32 *) (m + 12) xorl 12(%esi),%ecx # *(uint32 *) (out + 8) = in2 movl %eax,8(%edi) # *(uint32 *) (out + 12) = in3 movl %ecx,12(%edi) # in4 = x4 movl 116(%esp),%eax # in5 = x5 movl 120(%esp),%ecx # in4 += j4 addl 180(%esp),%eax # in5 += j5 addl 184(%esp),%ecx # in4 ^= *(uint32 *) (m + 16) xorl 16(%esi),%eax # in5 ^= *(uint32 *) (m + 20) xorl 20(%esi),%ecx # *(uint32 *) (out + 16) = in4 movl %eax,16(%edi) # *(uint32 *) (out + 20) = in5 movl %ecx,20(%edi) # in6 = x6 movl 124(%esp),%eax # in7 = x7 movl 128(%esp),%ecx # in6 += j6 addl 188(%esp),%eax # in7 += j7 addl 192(%esp),%ecx # in6 ^= *(uint32 *) (m + 24) xorl 24(%esi),%eax # in7 ^= *(uint32 *) (m + 28) xorl 28(%esi),%ecx # *(uint32 *) (out + 24) = in6 movl %eax,24(%edi) # *(uint32 *) (out + 28) = in7 movl %ecx,28(%edi) # in8 = x8 movl 132(%esp),%eax # in9 = x9 movl 136(%esp),%ecx # in8 += j8 addl 196(%esp),%eax # in9 += j9 addl 200(%esp),%ecx # in8 ^= *(uint32 *) (m + 32) xorl 32(%esi),%eax # in9 ^= *(uint32 *) (m + 36) xorl 36(%esi),%ecx # *(uint32 *) (out + 32) = in8 movl %eax,32(%edi) # *(uint32 *) (out + 36) = in9 movl %ecx,36(%edi) # in10 = x10 movl 140(%esp),%eax # in11 = x11 movl 144(%esp),%ecx # in10 += j10 addl 204(%esp),%eax # in11 += j11 addl 208(%esp),%ecx # in10 ^= *(uint32 *) (m + 40) xorl 40(%esi),%eax # in11 ^= *(uint32 *) (m + 44) xorl 44(%esi),%ecx # *(uint32 *) (out + 40) = in10 movl %eax,40(%edi) # *(uint32 *) (out + 44) = in11 movl %ecx,44(%edi) # in12 = x12 movl 148(%esp),%eax # in13 = x13 movl 152(%esp),%ecx # in12 += j12 addl 212(%esp),%eax # in13 += j13 addl 216(%esp),%ecx # in12 ^= *(uint32 *) (m + 48) xorl 48(%esi),%eax # in13 ^= *(uint32 *) (m + 52) xorl 52(%esi),%ecx # *(uint32 *) (out + 48) = in12 movl %eax,48(%edi) # *(uint32 *) (out + 52) = in13 movl %ecx,52(%edi) # in14 = x14 movl 156(%esp),%eax # in15 = x15 movl 160(%esp),%ecx # in14 += j14 addl 220(%esp),%eax # in15 += j15 addl 224(%esp),%ecx # in14 ^= *(uint32 *) (m + 56) xorl 56(%esi),%eax # in15 ^= *(uint32 *) (m + 60) xorl 60(%esi),%ecx # *(uint32 *) (out + 56) = in14 movl %eax,56(%edi) # *(uint32 *) (out + 60) = in15 movl %ecx,60(%edi) # bytes = bytes_backup movl 76(%esp),%ebx # in8 = j8 movl 196(%esp),%eax # in9 = j9 movl 200(%esp),%ecx # in8 += 1 add $1,%eax # in9 += 0 + carry adc $0,%ecx # j8 = in8 movl %eax,196(%esp) # j9 = in9 movl %ecx,200(%esp) # bytes - 64 cmp $64,%ebx # goto bytesatleast65 if unsigned> ja ._bytesatleast65 # goto bytesatleast64 if unsigned>= jae ._bytesatleast64 # m = out mov %edi,%esi # out = ctarget movl 228(%esp),%edi # i = bytes mov %ebx,%ecx # while (i) { *out++ = *m++; --i } rep movsb ._bytesatleast64: # x = x_backup movl 64(%esp),%eax # in8 = j8 movl 196(%esp),%ecx # in9 = j9 movl 200(%esp),%edx # *(uint32 *) (x + 32) = in8 movl %ecx,32(%eax) # *(uint32 *) (x + 36) = in9 movl %edx,36(%eax) ._done: # eax = eax_stack movl 80(%esp),%eax # ebx = ebx_stack movl 84(%esp),%ebx # esi = esi_stack movl 88(%esp),%esi # edi = edi_stack movl 92(%esp),%edi # ebp = ebp_stack movl 96(%esp),%ebp # leave add %eax,%esp ret ._bytesatleast65: # bytes -= 64 sub $64,%ebx # out += 64 add $64,%edi # m += 64 add $64,%esi # goto bytesatleast1 jmp ._bytesatleast1 # enter ECRYPT_keysetup .text .p2align 5 .globl ECRYPT_keysetup ECRYPT_keysetup: mov %esp,%eax and $31,%eax add $256,%eax sub %eax,%esp # eax_stack = eax movl %eax,64(%esp) # ebx_stack = ebx movl %ebx,68(%esp) # esi_stack = esi movl %esi,72(%esp) # edi_stack = edi movl %edi,76(%esp) # ebp_stack = ebp movl %ebp,80(%esp) # k = arg2 movl 8(%esp,%eax),%ecx # kbits = arg3 movl 12(%esp,%eax),%edx # x = arg1 movl 4(%esp,%eax),%eax # in1 = *(uint32 *) (k + 0) movl 0(%ecx),%ebx # in2 = *(uint32 *) (k + 4) movl 4(%ecx),%esi # in3 = *(uint32 *) (k + 8) movl 8(%ecx),%edi # in4 = *(uint32 *) (k + 12) movl 12(%ecx),%ebp # *(uint32 *) (x + 4) = in1 movl %ebx,4(%eax) # *(uint32 *) (x + 8) = in2 movl %esi,8(%eax) # *(uint32 *) (x + 12) = in3 movl %edi,12(%eax) # *(uint32 *) (x + 16) = in4 movl %ebp,16(%eax) # kbits - 256 cmp $256,%edx # goto kbits128 if unsigned< jb ._kbits128 ._kbits256: # in11 = *(uint32 *) (k + 16) movl 16(%ecx),%edx # in12 = *(uint32 *) (k + 20) movl 20(%ecx),%ebx # in13 = *(uint32 *) (k + 24) movl 24(%ecx),%esi # in14 = *(uint32 *) (k + 28) movl 28(%ecx),%ecx # *(uint32 *) (x + 44) = in11 movl %edx,44(%eax) # *(uint32 *) (x + 48) = in12 movl %ebx,48(%eax) # *(uint32 *) (x + 52) = in13 movl %esi,52(%eax) # *(uint32 *) (x + 56) = in14 movl %ecx,56(%eax) # in0 = 1634760805 mov $1634760805,%ecx # in5 = 857760878 mov $857760878,%edx # in10 = 2036477234 mov $2036477234,%ebx # in15 = 1797285236 mov $1797285236,%esi # *(uint32 *) (x + 0) = in0 movl %ecx,0(%eax) # *(uint32 *) (x + 20) = in5 movl %edx,20(%eax) # *(uint32 *) (x + 40) = in10 movl %ebx,40(%eax) # *(uint32 *) (x + 60) = in15 movl %esi,60(%eax) # goto keysetupdone jmp ._keysetupdone ._kbits128: # in11 = *(uint32 *) (k + 0) movl 0(%ecx),%edx # in12 = *(uint32 *) (k + 4) movl 4(%ecx),%ebx # in13 = *(uint32 *) (k + 8) movl 8(%ecx),%esi # in14 = *(uint32 *) (k + 12) movl 12(%ecx),%ecx # *(uint32 *) (x + 44) = in11 movl %edx,44(%eax) # *(uint32 *) (x + 48) = in12 movl %ebx,48(%eax) # *(uint32 *) (x + 52) = in13 movl %esi,52(%eax) # *(uint32 *) (x + 56) = in14 movl %ecx,56(%eax) # in0 = 1634760805 mov $1634760805,%ecx # in5 = 824206446 mov $824206446,%edx # in10 = 2036477238 mov $2036477238,%ebx # in15 = 1797285236 mov $1797285236,%esi # *(uint32 *) (x + 0) = in0 movl %ecx,0(%eax) # *(uint32 *) (x + 20) = in5 movl %edx,20(%eax) # *(uint32 *) (x + 40) = in10 movl %ebx,40(%eax) # *(uint32 *) (x + 60) = in15 movl %esi,60(%eax) ._keysetupdone: # eax = eax_stack movl 64(%esp),%eax # ebx = ebx_stack movl 68(%esp),%ebx # esi = esi_stack movl 72(%esp),%esi # edi = edi_stack movl 76(%esp),%edi # ebp = ebp_stack movl 80(%esp),%ebp # leave add %eax,%esp ret # enter ECRYPT_ivsetup .text .p2align 5 .globl ECRYPT_ivsetup ECRYPT_ivsetup: mov %esp,%eax and $31,%eax add $256,%eax sub %eax,%esp # eax_stack = eax movl %eax,64(%esp) # ebx_stack = ebx movl %ebx,68(%esp) # esi_stack = esi movl %esi,72(%esp) # edi_stack = edi movl %edi,76(%esp) # ebp_stack = ebp movl %ebp,80(%esp) # iv = arg2 movl 8(%esp,%eax),%ecx # x = arg1 movl 4(%esp,%eax),%eax # in6 = *(uint32 *) (iv + 0) movl 0(%ecx),%edx # in7 = *(uint32 *) (iv + 4) movl 4(%ecx),%ecx # in8 = 0 mov $0,%ebx # in9 = 0 mov $0,%esi # *(uint32 *) (x + 24) = in6 movl %edx,24(%eax) # *(uint32 *) (x + 28) = in7 movl %ecx,28(%eax) # *(uint32 *) (x + 32) = in8 movl %ebx,32(%eax) # *(uint32 *) (x + 36) = in9 movl %esi,36(%eax) # eax = eax_stack movl 64(%esp),%eax # ebx = ebx_stack movl 68(%esp),%ebx # esi = esi_stack movl 72(%esp),%esi # edi = edi_stack movl 76(%esp),%edi # ebp = ebp_stack movl 80(%esp),%ebp # leave add %eax,%esp ret