diff options
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2')
7 files changed, 589 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/build.info b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/build.info new file mode 100644 index 000000000..47a3fd0d4 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/build.info @@ -0,0 +1,3 @@ +LIBS=../../libcrypto +SOURCE[../../libcrypto]=\ + rc2_ecb.c rc2_skey.c rc2_cbc.c rc2cfb64.c rc2ofb64.c diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_cbc.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_cbc.c new file mode 100644 index 000000000..17e86f690 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_cbc.c @@ -0,0 +1,179 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/rc2.h> +#include "rc2_local.h" + +void RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, + RC2_KEY *ks, unsigned char *iv, int encrypt) +{ + register unsigned long tin0, tin1; + register unsigned long tout0, tout1, xor0, xor1; + register long l = length; + unsigned long tin[2]; + + if (encrypt) { + c2l(iv, tout0); + c2l(iv, tout1); + iv -= 8; + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + c2l(in, tin1); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + RC2_encrypt(tin, ks); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } + if (l != -8) { + c2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + RC2_encrypt(tin, ks); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } + l2c(tout0, iv); + l2c(tout1, iv); + } else { + c2l(iv, xor0); + c2l(iv, xor1); + iv -= 8; + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + RC2_decrypt(tin, ks); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2c(tout0, out); + l2c(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + RC2_decrypt(tin, ks); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2cn(tout0, tout1, out, l + 8); + xor0 = tin0; + xor1 = tin1; + } + l2c(xor0, iv); + l2c(xor1, iv); + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + tin[0] = tin[1] = 0; +} + +void RC2_encrypt(unsigned long *d, RC2_KEY *key) +{ + int i, n; + register RC2_INT *p0, *p1; + register RC2_INT x0, x1, x2, x3, t; + unsigned long l; + + l = d[0]; + x0 = (RC2_INT) l & 0xffff; + x1 = (RC2_INT) (l >> 16L); + l = d[1]; + x2 = (RC2_INT) l & 0xffff; + x3 = (RC2_INT) (l >> 16L); + + n = 3; + i = 5; + + p0 = p1 = &(key->data[0]); + for (;;) { + t = (x0 + (x1 & ~x3) + (x2 & x3) + *(p0++)) & 0xffff; + x0 = (t << 1) | (t >> 15); + t = (x1 + (x2 & ~x0) + (x3 & x0) + *(p0++)) & 0xffff; + x1 = (t << 2) | (t >> 14); + t = (x2 + (x3 & ~x1) + (x0 & x1) + *(p0++)) & 0xffff; + x2 = (t << 3) | (t >> 13); + t = (x3 + (x0 & ~x2) + (x1 & x2) + *(p0++)) & 0xffff; + x3 = (t << 5) | (t >> 11); + + if (--i == 0) { + if (--n == 0) + break; + i = (n == 2) ? 6 : 5; + + x0 += p1[x3 & 0x3f]; + x1 += p1[x0 & 0x3f]; + x2 += p1[x1 & 0x3f]; + x3 += p1[x2 & 0x3f]; + } + } + + d[0] = + (unsigned long)(x0 & 0xffff) | ((unsigned long)(x1 & 0xffff) << 16L); + d[1] = + (unsigned long)(x2 & 0xffff) | ((unsigned long)(x3 & 0xffff) << 16L); +} + +void RC2_decrypt(unsigned long *d, RC2_KEY *key) +{ + int i, n; + register RC2_INT *p0, *p1; + register RC2_INT x0, x1, x2, x3, t; + unsigned long l; + + l = d[0]; + x0 = (RC2_INT) l & 0xffff; + x1 = (RC2_INT) (l >> 16L); + l = d[1]; + x2 = (RC2_INT) l & 0xffff; + x3 = (RC2_INT) (l >> 16L); + + n = 3; + i = 5; + + p0 = &(key->data[63]); + p1 = &(key->data[0]); + for (;;) { + t = ((x3 << 11) | (x3 >> 5)) & 0xffff; + x3 = (t - (x0 & ~x2) - (x1 & x2) - *(p0--)) & 0xffff; + t = ((x2 << 13) | (x2 >> 3)) & 0xffff; + x2 = (t - (x3 & ~x1) - (x0 & x1) - *(p0--)) & 0xffff; + t = ((x1 << 14) | (x1 >> 2)) & 0xffff; + x1 = (t - (x2 & ~x0) - (x3 & x0) - *(p0--)) & 0xffff; + t = ((x0 << 15) | (x0 >> 1)) & 0xffff; + x0 = (t - (x1 & ~x3) - (x2 & x3) - *(p0--)) & 0xffff; + + if (--i == 0) { + if (--n == 0) + break; + i = (n == 2) ? 6 : 5; + + x3 = (x3 - p1[x2 & 0x3f]) & 0xffff; + x2 = (x2 - p1[x1 & 0x3f]) & 0xffff; + x1 = (x1 - p1[x0 & 0x3f]) & 0xffff; + x0 = (x0 - p1[x3 & 0x3f]) & 0xffff; + } + } + + d[0] = + (unsigned long)(x0 & 0xffff) | ((unsigned long)(x1 & 0xffff) << 16L); + d[1] = + (unsigned long)(x2 & 0xffff) | ((unsigned long)(x3 & 0xffff) << 16L); +} diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_ecb.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_ecb.c new file mode 100644 index 000000000..8d9927cd5 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_ecb.c @@ -0,0 +1,40 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/rc2.h> +#include "rc2_local.h" +#include <openssl/opensslv.h> + +/*- + * RC2 as implemented frm a posting from + * Newsgroups: sci.crypt + * Subject: Specification for Ron Rivests Cipher No.2 + * Message-ID: <4fk39f$f70@net.auckland.ac.nz> + * Date: 11 Feb 1996 06:45:03 GMT + */ + +void RC2_ecb_encrypt(const unsigned char *in, unsigned char *out, RC2_KEY *ks, + int encrypt) +{ + unsigned long l, d[2]; + + c2l(in, l); + d[0] = l; + c2l(in, l); + d[1] = l; + if (encrypt) + RC2_encrypt(d, ks); + else + RC2_decrypt(d, ks); + l = d[0]; + l2c(l, out); + l = d[1]; + l2c(l, out); + l = d[0] = d[1] = 0; +} diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_local.h b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_local.h new file mode 100644 index 000000000..e4dad9478 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_local.h @@ -0,0 +1,134 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#undef c2l +#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \ + l|=((unsigned long)(*((c)++)))<< 8L, \ + l|=((unsigned long)(*((c)++)))<<16L, \ + l|=((unsigned long)(*((c)++)))<<24L) + +/* NOTE - c is not incremented as per c2l */ +#undef c2ln +#define c2ln(c,l1,l2,n) { \ + c+=n; \ + l1=l2=0; \ + switch (n) { \ + case 8: l2 =((unsigned long)(*(--(c))))<<24L; \ + /* fall thru */ \ + case 7: l2|=((unsigned long)(*(--(c))))<<16L; \ + /* fall thru */ \ + case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \ + /* fall thru */ \ + case 5: l2|=((unsigned long)(*(--(c)))); \ + /* fall thru */ \ + case 4: l1 =((unsigned long)(*(--(c))))<<24L; \ + /* fall thru */ \ + case 3: l1|=((unsigned long)(*(--(c))))<<16L; \ + /* fall thru */ \ + case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \ + /* fall thru */ \ + case 1: l1|=((unsigned long)(*(--(c)))); \ + } \ + } + +#undef l2c +#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>24L)&0xff)) + +/* NOTE - c is not incremented as per l2c */ +#undef l2cn +#define l2cn(l1,l2,c,n) { \ + c+=n; \ + switch (n) { \ + case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ + /* fall thru */ \ + case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ + /* fall thru */ \ + case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ + /* fall thru */ \ + case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ + /* fall thru */ \ + case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ + /* fall thru */ \ + case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ + /* fall thru */ \ + case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ + /* fall thru */ \ + case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ + } \ + } + +/* NOTE - c is not incremented as per n2l */ +#define n2ln(c,l1,l2,n) { \ + c+=n; \ + l1=l2=0; \ + switch (n) { \ + case 8: l2 =((unsigned long)(*(--(c)))) ; \ + /* fall thru */ \ + case 7: l2|=((unsigned long)(*(--(c))))<< 8; \ + /* fall thru */ \ + case 6: l2|=((unsigned long)(*(--(c))))<<16; \ + /* fall thru */ \ + case 5: l2|=((unsigned long)(*(--(c))))<<24; \ + /* fall thru */ \ + case 4: l1 =((unsigned long)(*(--(c)))) ; \ + /* fall thru */ \ + case 3: l1|=((unsigned long)(*(--(c))))<< 8; \ + /* fall thru */ \ + case 2: l1|=((unsigned long)(*(--(c))))<<16; \ + /* fall thru */ \ + case 1: l1|=((unsigned long)(*(--(c))))<<24; \ + } \ + } + +/* NOTE - c is not incremented as per l2n */ +#define l2nn(l1,l2,c,n) { \ + c+=n; \ + switch (n) { \ + case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ + /* fall thru */ \ + case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ + /* fall thru */ \ + case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ + /* fall thru */ \ + case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ + /* fall thru */ \ + case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ + /* fall thru */ \ + case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ + /* fall thru */ \ + case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ + /* fall thru */ \ + case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ + } \ + } + +#undef n2l +#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \ + l|=((unsigned long)(*((c)++)))<<16L, \ + l|=((unsigned long)(*((c)++)))<< 8L, \ + l|=((unsigned long)(*((c)++)))) + +#undef l2n +#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l) )&0xff)) + +#define C_RC2(n) \ + t=(x0+(x1& ~x3)+(x2&x3)+ *(p0++))&0xffff; \ + x0=(t<<1)|(t>>15); \ + t=(x1+(x2& ~x0)+(x3&x0)+ *(p0++))&0xffff; \ + x1=(t<<2)|(t>>14); \ + t=(x2+(x3& ~x1)+(x0&x1)+ *(p0++))&0xffff; \ + x2=(t<<3)|(t>>13); \ + t=(x3+(x0& ~x2)+(x1&x2)+ *(p0++))&0xffff; \ + x3=(t<<5)|(t>>11); diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_skey.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_skey.c new file mode 100644 index 000000000..60ebd42f2 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2_skey.c @@ -0,0 +1,98 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/rc2.h> +#include "rc2_local.h" + +static const unsigned char key_table[256] = { + 0xd9, 0x78, 0xf9, 0xc4, 0x19, 0xdd, 0xb5, 0xed, 0x28, 0xe9, 0xfd, 0x79, + 0x4a, 0xa0, 0xd8, 0x9d, 0xc6, 0x7e, 0x37, 0x83, 0x2b, 0x76, 0x53, 0x8e, + 0x62, 0x4c, 0x64, 0x88, 0x44, 0x8b, 0xfb, 0xa2, 0x17, 0x9a, 0x59, 0xf5, + 0x87, 0xb3, 0x4f, 0x13, 0x61, 0x45, 0x6d, 0x8d, 0x09, 0x81, 0x7d, 0x32, + 0xbd, 0x8f, 0x40, 0xeb, 0x86, 0xb7, 0x7b, 0x0b, 0xf0, 0x95, 0x21, 0x22, + 0x5c, 0x6b, 0x4e, 0x82, 0x54, 0xd6, 0x65, 0x93, 0xce, 0x60, 0xb2, 0x1c, + 0x73, 0x56, 0xc0, 0x14, 0xa7, 0x8c, 0xf1, 0xdc, 0x12, 0x75, 0xca, 0x1f, + 0x3b, 0xbe, 0xe4, 0xd1, 0x42, 0x3d, 0xd4, 0x30, 0xa3, 0x3c, 0xb6, 0x26, + 0x6f, 0xbf, 0x0e, 0xda, 0x46, 0x69, 0x07, 0x57, 0x27, 0xf2, 0x1d, 0x9b, + 0xbc, 0x94, 0x43, 0x03, 0xf8, 0x11, 0xc7, 0xf6, 0x90, 0xef, 0x3e, 0xe7, + 0x06, 0xc3, 0xd5, 0x2f, 0xc8, 0x66, 0x1e, 0xd7, 0x08, 0xe8, 0xea, 0xde, + 0x80, 0x52, 0xee, 0xf7, 0x84, 0xaa, 0x72, 0xac, 0x35, 0x4d, 0x6a, 0x2a, + 0x96, 0x1a, 0xd2, 0x71, 0x5a, 0x15, 0x49, 0x74, 0x4b, 0x9f, 0xd0, 0x5e, + 0x04, 0x18, 0xa4, 0xec, 0xc2, 0xe0, 0x41, 0x6e, 0x0f, 0x51, 0xcb, 0xcc, + 0x24, 0x91, 0xaf, 0x50, 0xa1, 0xf4, 0x70, 0x39, 0x99, 0x7c, 0x3a, 0x85, + 0x23, 0xb8, 0xb4, 0x7a, 0xfc, 0x02, 0x36, 0x5b, 0x25, 0x55, 0x97, 0x31, + 0x2d, 0x5d, 0xfa, 0x98, 0xe3, 0x8a, 0x92, 0xae, 0x05, 0xdf, 0x29, 0x10, + 0x67, 0x6c, 0xba, 0xc9, 0xd3, 0x00, 0xe6, 0xcf, 0xe1, 0x9e, 0xa8, 0x2c, + 0x63, 0x16, 0x01, 0x3f, 0x58, 0xe2, 0x89, 0xa9, 0x0d, 0x38, 0x34, 0x1b, + 0xab, 0x33, 0xff, 0xb0, 0xbb, 0x48, 0x0c, 0x5f, 0xb9, 0xb1, 0xcd, 0x2e, + 0xc5, 0xf3, 0xdb, 0x47, 0xe5, 0xa5, 0x9c, 0x77, 0x0a, 0xa6, 0x20, 0x68, + 0xfe, 0x7f, 0xc1, 0xad, +}; + +#if defined(_MSC_VER) && defined(_ARM_) +# pragma optimize("g",off) +#endif + +/* + * It has come to my attention that there are 2 versions of the RC2 key + * schedule. One which is normal, and anther which has a hook to use a + * reduced key length. BSAFE uses the 'retarded' version. What I previously + * shipped is the same as specifying 1024 for the 'bits' parameter. Bsafe + * uses a version where the bits parameter is the same as len*8 + */ +void RC2_set_key(RC2_KEY *key, int len, const unsigned char *data, int bits) +{ + int i, j; + unsigned char *k; + RC2_INT *ki; + unsigned int c, d; + + k = (unsigned char *)&(key->data[0]); + *k = 0; /* for if there is a zero length key */ + + if (len > 128) + len = 128; + if (bits <= 0) + bits = 1024; + if (bits > 1024) + bits = 1024; + + for (i = 0; i < len; i++) + k[i] = data[i]; + + /* expand table */ + d = k[len - 1]; + j = 0; + for (i = len; i < 128; i++, j++) { + d = key_table[(k[j] + d) & 0xff]; + k[i] = d; + } + + /* hmm.... key reduction to 'bits' bits */ + + j = (bits + 7) >> 3; + i = 128 - j; + c = (0xff >> (-bits & 0x07)); + + d = key_table[k[i] & c]; + k[i] = d; + while (i--) { + d = key_table[k[i + j] ^ d]; + k[i] = d; + } + + /* copy from bytes into RC2_INT's */ + ki = &(key->data[63]); + for (i = 127; i >= 0; i -= 2) + *(ki--) = ((k[i] << 8) | k[i - 1]) & 0xffff; +} + +#if defined(_MSC_VER) +# pragma optimize("",on) +#endif diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2cfb64.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2cfb64.c new file mode 100644 index 000000000..8d1c3a4d8 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2cfb64.c @@ -0,0 +1,74 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/rc2.h> +#include "rc2_local.h" + +/* + * The input and output encrypted as though 64bit cfb mode is being used. + * The extra state information to record how much of the 64bit block we have + * used is contained in *num; + */ + +void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out, + long length, RC2_KEY *schedule, unsigned char *ivec, + int *num, int encrypt) +{ + register unsigned long v0, v1, t; + register int n = *num; + register long l = length; + unsigned long ti[2]; + unsigned char *iv, c, cc; + + iv = (unsigned char *)ivec; + if (encrypt) { + while (l--) { + if (n == 0) { + c2l(iv, v0); + ti[0] = v0; + c2l(iv, v1); + ti[1] = v1; + RC2_encrypt((unsigned long *)ti, schedule); + iv = (unsigned char *)ivec; + t = ti[0]; + l2c(t, iv); + t = ti[1]; + l2c(t, iv); + iv = (unsigned char *)ivec; + } + c = *(in++) ^ iv[n]; + *(out++) = c; + iv[n] = c; + n = (n + 1) & 0x07; + } + } else { + while (l--) { + if (n == 0) { + c2l(iv, v0); + ti[0] = v0; + c2l(iv, v1); + ti[1] = v1; + RC2_encrypt((unsigned long *)ti, schedule); + iv = (unsigned char *)ivec; + t = ti[0]; + l2c(t, iv); + t = ti[1]; + l2c(t, iv); + iv = (unsigned char *)ivec; + } + cc = *(in++); + c = iv[n]; + iv[n] = cc; + *(out++) = c ^ cc; + n = (n + 1) & 0x07; + } + } + v0 = v1 = ti[0] = ti[1] = t = c = cc = 0; + *num = n; +} diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2ofb64.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2ofb64.c new file mode 100644 index 000000000..61b2c5643 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc2/rc2ofb64.c @@ -0,0 +1,61 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <openssl/rc2.h> +#include "rc2_local.h" + +/* + * The input and output encrypted as though 64bit ofb mode is being used. + * The extra state information to record how much of the 64bit block we have + * used is contained in *num; + */ +void RC2_ofb64_encrypt(const unsigned char *in, unsigned char *out, + long length, RC2_KEY *schedule, unsigned char *ivec, + int *num) +{ + register unsigned long v0, v1, t; + register int n = *num; + register long l = length; + unsigned char d[8]; + register char *dp; + unsigned long ti[2]; + unsigned char *iv; + int save = 0; + + iv = (unsigned char *)ivec; + c2l(iv, v0); + c2l(iv, v1); + ti[0] = v0; + ti[1] = v1; + dp = (char *)d; + l2c(v0, dp); + l2c(v1, dp); + while (l--) { + if (n == 0) { + RC2_encrypt((unsigned long *)ti, schedule); + dp = (char *)d; + t = ti[0]; + l2c(t, dp); + t = ti[1]; + l2c(t, dp); + save++; + } + *(out++) = *(in++) ^ d[n]; + n = (n + 1) & 0x07; + } + if (save) { + v0 = ti[0]; + v1 = ti[1]; + iv = (unsigned char *)ivec; + l2c(v0, iv); + l2c(v1, iv); + } + t = v0 = v1 = ti[0] = ti[1] = 0; + *num = n; +} |