| File: | out/../deps/openssl/openssl/crypto/idea/i_cbc.c |
| Warning: | line 92, column 35 Although the value stored to 'xor0' is used in the enclosing expression, the value is never actually read from 'xor0' |
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| 1 | /* |
| 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
| 5 | * this file except in compliance with the License. You can obtain a copy |
| 6 | * in the file LICENSE in the source distribution or at |
| 7 | * https://www.openssl.org/source/license.html |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * IDEA low level APIs are deprecated for public use, but still ok for internal |
| 12 | * use where we're using them to implement the higher level EVP interface, as is |
| 13 | * the case here. |
| 14 | */ |
| 15 | #include "internal/deprecated.h" |
| 16 | |
| 17 | #include <openssl/idea.h> |
| 18 | #include "idea_local.h" |
| 19 | |
| 20 | void IDEA_cbc_encrypt(const unsigned char *in, unsigned char *out, |
| 21 | long length, IDEA_KEY_SCHEDULE *ks, unsigned char *iv, |
| 22 | int encrypt) |
| 23 | { |
| 24 | register unsigned long tin0, tin1; |
| 25 | register unsigned long tout0, tout1, xor0, xor1; |
| 26 | register long l = length; |
| 27 | unsigned long tin[2]; |
| 28 | |
| 29 | if (encrypt) { |
| 30 | n2l(iv, tout0)(tout0 =((unsigned long)(*((iv)++)))<<24L, tout0|=((unsigned long)(*((iv)++)))<<16L, tout0|=((unsigned long)(*((iv) ++)))<< 8L, tout0|=((unsigned long)(*((iv)++)))); |
| 31 | n2l(iv, tout1)(tout1 =((unsigned long)(*((iv)++)))<<24L, tout1|=((unsigned long)(*((iv)++)))<<16L, tout1|=((unsigned long)(*((iv) ++)))<< 8L, tout1|=((unsigned long)(*((iv)++)))); |
| 32 | iv -= 8; |
| 33 | for (l -= 8; l >= 0; l -= 8) { |
| 34 | n2l(in, tin0)(tin0 =((unsigned long)(*((in)++)))<<24L, tin0|=((unsigned long)(*((in)++)))<<16L, tin0|=((unsigned long)(*((in)++ )))<< 8L, tin0|=((unsigned long)(*((in)++)))); |
| 35 | n2l(in, tin1)(tin1 =((unsigned long)(*((in)++)))<<24L, tin1|=((unsigned long)(*((in)++)))<<16L, tin1|=((unsigned long)(*((in)++ )))<< 8L, tin1|=((unsigned long)(*((in)++)))); |
| 36 | tin0 ^= tout0; |
| 37 | tin1 ^= tout1; |
| 38 | tin[0] = tin0; |
| 39 | tin[1] = tin1; |
| 40 | IDEA_encrypt(tin, ks); |
| 41 | tout0 = tin[0]; |
| 42 | l2n(tout0, out)(*((out)++)=(unsigned char)(((tout0)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout0)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout0)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout0) )&0xff)); |
| 43 | tout1 = tin[1]; |
| 44 | l2n(tout1, out)(*((out)++)=(unsigned char)(((tout1)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout1)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout1)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout1) )&0xff)); |
| 45 | } |
| 46 | if (l != -8) { |
| 47 | n2ln(in, tin0, tin1, l + 8){ in+=l + 8; tin0=tin1=0; switch (l + 8) { case 8: tin1 =((unsigned long)(*(--(in)))) ; case 7: tin1|=((unsigned long)(*(--(in)) ))<< 8; case 6: tin1|=((unsigned long)(*(--(in))))<< 16; case 5: tin1|=((unsigned long)(*(--(in))))<<24; case 4: tin0 =((unsigned long)(*(--(in)))) ; case 3: tin0|=((unsigned long)(*(--(in))))<< 8; case 2: tin0|=((unsigned long)( *(--(in))))<<16; case 1: tin0|=((unsigned long)(*(--(in ))))<<24; } }; |
| 48 | tin0 ^= tout0; |
| 49 | tin1 ^= tout1; |
| 50 | tin[0] = tin0; |
| 51 | tin[1] = tin1; |
| 52 | IDEA_encrypt(tin, ks); |
| 53 | tout0 = tin[0]; |
| 54 | l2n(tout0, out)(*((out)++)=(unsigned char)(((tout0)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout0)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout0)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout0) )&0xff)); |
| 55 | tout1 = tin[1]; |
| 56 | l2n(tout1, out)(*((out)++)=(unsigned char)(((tout1)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout1)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout1)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout1) )&0xff)); |
| 57 | } |
| 58 | l2n(tout0, iv)(*((iv)++)=(unsigned char)(((tout0)>>24L)&0xff), *( (iv)++)=(unsigned char)(((tout0)>>16L)&0xff), *((iv )++)=(unsigned char)(((tout0)>> 8L)&0xff), *((iv)++ )=(unsigned char)(((tout0) )&0xff)); |
| 59 | l2n(tout1, iv)(*((iv)++)=(unsigned char)(((tout1)>>24L)&0xff), *( (iv)++)=(unsigned char)(((tout1)>>16L)&0xff), *((iv )++)=(unsigned char)(((tout1)>> 8L)&0xff), *((iv)++ )=(unsigned char)(((tout1) )&0xff)); |
| 60 | } else { |
| 61 | n2l(iv, xor0)(xor0 =((unsigned long)(*((iv)++)))<<24L, xor0|=((unsigned long)(*((iv)++)))<<16L, xor0|=((unsigned long)(*((iv)++ )))<< 8L, xor0|=((unsigned long)(*((iv)++)))); |
| 62 | n2l(iv, xor1)(xor1 =((unsigned long)(*((iv)++)))<<24L, xor1|=((unsigned long)(*((iv)++)))<<16L, xor1|=((unsigned long)(*((iv)++ )))<< 8L, xor1|=((unsigned long)(*((iv)++)))); |
| 63 | iv -= 8; |
| 64 | for (l -= 8; l >= 0; l -= 8) { |
| 65 | n2l(in, tin0)(tin0 =((unsigned long)(*((in)++)))<<24L, tin0|=((unsigned long)(*((in)++)))<<16L, tin0|=((unsigned long)(*((in)++ )))<< 8L, tin0|=((unsigned long)(*((in)++)))); |
| 66 | tin[0] = tin0; |
| 67 | n2l(in, tin1)(tin1 =((unsigned long)(*((in)++)))<<24L, tin1|=((unsigned long)(*((in)++)))<<16L, tin1|=((unsigned long)(*((in)++ )))<< 8L, tin1|=((unsigned long)(*((in)++)))); |
| 68 | tin[1] = tin1; |
| 69 | IDEA_encrypt(tin, ks); |
| 70 | tout0 = tin[0] ^ xor0; |
| 71 | tout1 = tin[1] ^ xor1; |
| 72 | l2n(tout0, out)(*((out)++)=(unsigned char)(((tout0)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout0)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout0)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout0) )&0xff)); |
| 73 | l2n(tout1, out)(*((out)++)=(unsigned char)(((tout1)>>24L)&0xff), * ((out)++)=(unsigned char)(((tout1)>>16L)&0xff), *(( out)++)=(unsigned char)(((tout1)>> 8L)&0xff), *((out )++)=(unsigned char)(((tout1) )&0xff)); |
| 74 | xor0 = tin0; |
| 75 | xor1 = tin1; |
| 76 | } |
| 77 | if (l != -8) { |
| 78 | n2l(in, tin0)(tin0 =((unsigned long)(*((in)++)))<<24L, tin0|=((unsigned long)(*((in)++)))<<16L, tin0|=((unsigned long)(*((in)++ )))<< 8L, tin0|=((unsigned long)(*((in)++)))); |
| 79 | tin[0] = tin0; |
| 80 | n2l(in, tin1)(tin1 =((unsigned long)(*((in)++)))<<24L, tin1|=((unsigned long)(*((in)++)))<<16L, tin1|=((unsigned long)(*((in)++ )))<< 8L, tin1|=((unsigned long)(*((in)++)))); |
| 81 | tin[1] = tin1; |
| 82 | IDEA_encrypt(tin, ks); |
| 83 | tout0 = tin[0] ^ xor0; |
| 84 | tout1 = tin[1] ^ xor1; |
| 85 | l2nn(tout0, tout1, out, l + 8){ out+=l + 8; switch (l + 8) { case 8: *(--(out))=(unsigned char )(((tout1) )&0xff); case 7: *(--(out))=(unsigned char)((( tout1)>> 8)&0xff); case 6: *(--(out))=(unsigned char )(((tout1)>>16)&0xff); case 5: *(--(out))=(unsigned char)(((tout1)>>24)&0xff); case 4: *(--(out))=(unsigned char)(((tout0) )&0xff); case 3: *(--(out))=(unsigned char )(((tout0)>> 8)&0xff); case 2: *(--(out))=(unsigned char)(((tout0)>>16)&0xff); case 1: *(--(out))=(unsigned char)(((tout0)>>24)&0xff); } }; |
| 86 | xor0 = tin0; |
| 87 | xor1 = tin1; |
| 88 | } |
| 89 | l2n(xor0, iv)(*((iv)++)=(unsigned char)(((xor0)>>24L)&0xff), *(( iv)++)=(unsigned char)(((xor0)>>16L)&0xff), *((iv)++ )=(unsigned char)(((xor0)>> 8L)&0xff), *((iv)++)=(unsigned char)(((xor0) )&0xff)); |
| 90 | l2n(xor1, iv)(*((iv)++)=(unsigned char)(((xor1)>>24L)&0xff), *(( iv)++)=(unsigned char)(((xor1)>>16L)&0xff), *((iv)++ )=(unsigned char)(((xor1)>> 8L)&0xff), *((iv)++)=(unsigned char)(((xor1) )&0xff)); |
| 91 | } |
| 92 | tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; |
Although the value stored to 'xor0' is used in the enclosing expression, the value is never actually read from 'xor0' | |
| 93 | tin[0] = tin[1] = 0; |
| 94 | } |
| 95 | |
| 96 | void IDEA_encrypt(unsigned long *d, IDEA_KEY_SCHEDULE *key) |
| 97 | { |
| 98 | register IDEA_INT *p; |
| 99 | register unsigned long x1, x2, x3, x4, t0, t1, ul; |
| 100 | |
| 101 | x2 = d[0]; |
| 102 | x1 = (x2 >> 16); |
| 103 | x4 = d[1]; |
| 104 | x3 = (x4 >> 16); |
| 105 | |
| 106 | p = &(key->data[0][0]); |
| 107 | |
| 108 | E_IDEA(0)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 109 | E_IDEA(1)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 110 | E_IDEA(2)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 111 | E_IDEA(3)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 112 | E_IDEA(4)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 113 | E_IDEA(5)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 114 | E_IDEA(6)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 115 | E_IDEA(7)x1&=0xffff; ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul &0xffff)-(ul>>16); x1-=((x1)>>16); } else x1= (-(int)x1-*p+1);; p++; x2+= *(p++); x3+= *(p++); x4&=0xffff ; ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)- (ul>>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+ 1);; p++; t0=(x1^x3)&0xffff; ul=(unsigned long)t0**p; if ( ul != 0) { t0=(ul&0xffff)-(ul>>16); t0-=((t0)>> 16); } else t0=(-(int)t0-*p+1);; p++; t1=(t0+(x2^x4))&0xffff ; ul=(unsigned long)t1**p; if (ul != 0) { t1=(ul&0xffff)- (ul>>16); t1-=((t1)>>16); } else t1=(-(int)t1-*p+ 1);; p++; t0+=t1; x1^=t1; x4^=t0; ul=x2^t0; x2=x3^t1; x3=ul;; |
| 116 | |
| 117 | x1 &= 0xffff; |
| 118 | idea_mul(x1, x1, *p, ul)ul=(unsigned long)x1**p; if (ul != 0) { x1=(ul&0xffff)-(ul >>16); x1-=((x1)>>16); } else x1=(-(int)x1-*p+1);; |
| 119 | p++; |
| 120 | |
| 121 | t0 = x3 + *(p++); |
| 122 | t1 = x2 + *(p++); |
| 123 | |
| 124 | x4 &= 0xffff; |
| 125 | idea_mul(x4, x4, *p, ul)ul=(unsigned long)x4**p; if (ul != 0) { x4=(ul&0xffff)-(ul >>16); x4-=((x4)>>16); } else x4=(-(int)x4-*p+1);; |
| 126 | |
| 127 | d[0] = (t0 & 0xffff) | ((x1 & 0xffff) << 16); |
| 128 | d[1] = (x4 & 0xffff) | ((t1 & 0xffff) << 16); |
| 129 | } |