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Diffstat (limited to 'app/assets/javascripts/srp/lib/aes.js')
m---------app/assets/javascripts/srp0
-rw-r--r--app/assets/javascripts/srp/lib/aes.js771
2 files changed, 771 insertions, 0 deletions
diff --git a/app/assets/javascripts/srp b/app/assets/javascripts/srp
deleted file mode 160000
-Subproject 9e1a41733468d4a3f5102b04277b9cd7b52d0a4
diff --git a/app/assets/javascripts/srp/lib/aes.js b/app/assets/javascripts/srp/lib/aes.js
new file mode 100644
index 0000000..5682618
--- /dev/null
+++ b/app/assets/javascripts/srp/lib/aes.js
@@ -0,0 +1,771 @@
+/*
+ * aes.js: implements AES - Advanced Encryption Standard
+ * from the SlowAES project, http://code.google.com/p/slowaes/
+ *
+ * Copyright (c) 2008 Josh Davis ( http://www.josh-davis.org ),
+ * Mark Percival ( http://mpercival.com ),
+ *
+ * Ported from C code written by Laurent Haan ( http://www.progressive-coding.com )
+ *
+ * Licensed under the Apache License, Version 2.0
+ * http://www.apache.org/licenses/
+ */
+
+var slowAES = {
+ /*
+ * START AES SECTION
+ */
+ aes:{
+ // structure of valid key sizes
+ keySize:{
+ SIZE_128:16,
+ SIZE_192:24,
+ SIZE_256:32
+ },
+
+ // Rijndael S-box
+ sbox:[
+ 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
+ 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
+ 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+ 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
+ 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
+ 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+ 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
+ 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
+ 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+ 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
+ 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
+ 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+ 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
+ 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
+ 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+ 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 ],
+
+ // Rijndael Inverted S-box
+ rsbox:
+ [ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
+ , 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
+ , 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
+ , 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
+ , 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
+ , 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
+ , 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
+ , 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
+ , 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
+ , 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
+ , 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
+ , 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
+ , 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
+ , 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
+ , 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
+ , 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d ],
+
+ /* rotate the word eight bits to the left */
+ rotate:function(word)
+ {
+ var c = word[0];
+ for (var i = 0; i < 3; i++)
+ word[i] = word[i+1];
+ word[3] = c;
+
+ return word;
+ },
+
+ // Rijndael Rcon
+ Rcon:[
+ 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8,
+ 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3,
+ 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
+ 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d,
+ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab,
+ 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
+ 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25,
+ 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01,
+ 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
+ 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa,
+ 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a,
+ 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02,
+ 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
+ 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef,
+ 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
+ 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04,
+ 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f,
+ 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
+ 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33,
+ 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb ],
+
+ G2X: [
+ 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16,
+ 0x18, 0x1a, 0x1c, 0x1e, 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
+ 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, 0x40, 0x42, 0x44, 0x46,
+ 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
+ 0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76,
+ 0x78, 0x7a, 0x7c, 0x7e, 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e,
+ 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa4, 0xa6,
+ 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
+ 0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6,
+ 0xd8, 0xda, 0xdc, 0xde, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee,
+ 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe, 0x1b, 0x19, 0x1f, 0x1d,
+ 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
+ 0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d,
+ 0x23, 0x21, 0x27, 0x25, 0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55,
+ 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45, 0x7b, 0x79, 0x7f, 0x7d,
+ 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
+ 0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d,
+ 0x83, 0x81, 0x87, 0x85, 0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5,
+ 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5, 0xdb, 0xd9, 0xdf, 0xdd,
+ 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
+ 0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed,
+ 0xe3, 0xe1, 0xe7, 0xe5
+ ],
+
+ G3X: [
+ 0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d,
+ 0x14, 0x17, 0x12, 0x11, 0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39,
+ 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21, 0x60, 0x63, 0x66, 0x65,
+ 0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
+ 0x50, 0x53, 0x56, 0x55, 0x5c, 0x5f, 0x5a, 0x59, 0x48, 0x4b, 0x4e, 0x4d,
+ 0x44, 0x47, 0x42, 0x41, 0xc0, 0xc3, 0xc6, 0xc5, 0xcc, 0xcf, 0xca, 0xc9,
+ 0xd8, 0xdb, 0xde, 0xdd, 0xd4, 0xd7, 0xd2, 0xd1, 0xf0, 0xf3, 0xf6, 0xf5,
+ 0xfc, 0xff, 0xfa, 0xf9, 0xe8, 0xeb, 0xee, 0xed, 0xe4, 0xe7, 0xe2, 0xe1,
+ 0xa0, 0xa3, 0xa6, 0xa5, 0xac, 0xaf, 0xaa, 0xa9, 0xb8, 0xbb, 0xbe, 0xbd,
+ 0xb4, 0xb7, 0xb2, 0xb1, 0x90, 0x93, 0x96, 0x95, 0x9c, 0x9f, 0x9a, 0x99,
+ 0x88, 0x8b, 0x8e, 0x8d, 0x84, 0x87, 0x82, 0x81, 0x9b, 0x98, 0x9d, 0x9e,
+ 0x97, 0x94, 0x91, 0x92, 0x83, 0x80, 0x85, 0x86, 0x8f, 0x8c, 0x89, 0x8a,
+ 0xab, 0xa8, 0xad, 0xae, 0xa7, 0xa4, 0xa1, 0xa2, 0xb3, 0xb0, 0xb5, 0xb6,
+ 0xbf, 0xbc, 0xb9, 0xba, 0xfb, 0xf8, 0xfd, 0xfe, 0xf7, 0xf4, 0xf1, 0xf2,
+ 0xe3, 0xe0, 0xe5, 0xe6, 0xef, 0xec, 0xe9, 0xea, 0xcb, 0xc8, 0xcd, 0xce,
+ 0xc7, 0xc4, 0xc1, 0xc2, 0xd3, 0xd0, 0xd5, 0xd6, 0xdf, 0xdc, 0xd9, 0xda,
+ 0x5b, 0x58, 0x5d, 0x5e, 0x57, 0x54, 0x51, 0x52, 0x43, 0x40, 0x45, 0x46,
+ 0x4f, 0x4c, 0x49, 0x4a, 0x6b, 0x68, 0x6d, 0x6e, 0x67, 0x64, 0x61, 0x62,
+ 0x73, 0x70, 0x75, 0x76, 0x7f, 0x7c, 0x79, 0x7a, 0x3b, 0x38, 0x3d, 0x3e,
+ 0x37, 0x34, 0x31, 0x32, 0x23, 0x20, 0x25, 0x26, 0x2f, 0x2c, 0x29, 0x2a,
+ 0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16,
+ 0x1f, 0x1c, 0x19, 0x1a
+ ],
+
+ G9X: [
+ 0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53,
+ 0x6c, 0x65, 0x7e, 0x77, 0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf,
+ 0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7, 0x3b, 0x32, 0x29, 0x20,
+ 0x1f, 0x16, 0x0d, 0x04, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
+ 0xab, 0xa2, 0xb9, 0xb0, 0x8f, 0x86, 0x9d, 0x94, 0xe3, 0xea, 0xf1, 0xf8,
+ 0xc7, 0xce, 0xd5, 0xdc, 0x76, 0x7f, 0x64, 0x6d, 0x52, 0x5b, 0x40, 0x49,
+ 0x3e, 0x37, 0x2c, 0x25, 0x1a, 0x13, 0x08, 0x01, 0xe6, 0xef, 0xf4, 0xfd,
+ 0xc2, 0xcb, 0xd0, 0xd9, 0xae, 0xa7, 0xbc, 0xb5, 0x8a, 0x83, 0x98, 0x91,
+ 0x4d, 0x44, 0x5f, 0x56, 0x69, 0x60, 0x7b, 0x72, 0x05, 0x0c, 0x17, 0x1e,
+ 0x21, 0x28, 0x33, 0x3a, 0xdd, 0xd4, 0xcf, 0xc6, 0xf9, 0xf0, 0xeb, 0xe2,
+ 0x95, 0x9c, 0x87, 0x8e, 0xb1, 0xb8, 0xa3, 0xaa, 0xec, 0xe5, 0xfe, 0xf7,
+ 0xc8, 0xc1, 0xda, 0xd3, 0xa4, 0xad, 0xb6, 0xbf, 0x80, 0x89, 0x92, 0x9b,
+ 0x7c, 0x75, 0x6e, 0x67, 0x58, 0x51, 0x4a, 0x43, 0x34, 0x3d, 0x26, 0x2f,
+ 0x10, 0x19, 0x02, 0x0b, 0xd7, 0xde, 0xc5, 0xcc, 0xf3, 0xfa, 0xe1, 0xe8,
+ 0x9f, 0x96, 0x8d, 0x84, 0xbb, 0xb2, 0xa9, 0xa0, 0x47, 0x4e, 0x55, 0x5c,
+ 0x63, 0x6a, 0x71, 0x78, 0x0f, 0x06, 0x1d, 0x14, 0x2b, 0x22, 0x39, 0x30,
+ 0x9a, 0x93, 0x88, 0x81, 0xbe, 0xb7, 0xac, 0xa5, 0xd2, 0xdb, 0xc0, 0xc9,
+ 0xf6, 0xff, 0xe4, 0xed, 0x0a, 0x03, 0x18, 0x11, 0x2e, 0x27, 0x3c, 0x35,
+ 0x42, 0x4b, 0x50, 0x59, 0x66, 0x6f, 0x74, 0x7d, 0xa1, 0xa8, 0xb3, 0xba,
+ 0x85, 0x8c, 0x97, 0x9e, 0xe9, 0xe0, 0xfb, 0xf2, 0xcd, 0xc4, 0xdf, 0xd6,
+ 0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62,
+ 0x5d, 0x54, 0x4f, 0x46
+ ],
+
+ GBX: [
+ 0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45,
+ 0x74, 0x7f, 0x62, 0x69, 0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81,
+ 0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9, 0x7b, 0x70, 0x6d, 0x66,
+ 0x57, 0x5c, 0x41, 0x4a, 0x23, 0x28, 0x35, 0x3e, 0x0f, 0x04, 0x19, 0x12,
+ 0xcb, 0xc0, 0xdd, 0xd6, 0xe7, 0xec, 0xf1, 0xfa, 0x93, 0x98, 0x85, 0x8e,
+ 0xbf, 0xb4, 0xa9, 0xa2, 0xf6, 0xfd, 0xe0, 0xeb, 0xda, 0xd1, 0xcc, 0xc7,
+ 0xae, 0xa5, 0xb8, 0xb3, 0x82, 0x89, 0x94, 0x9f, 0x46, 0x4d, 0x50, 0x5b,
+ 0x6a, 0x61, 0x7c, 0x77, 0x1e, 0x15, 0x08, 0x03, 0x32, 0x39, 0x24, 0x2f,
+ 0x8d, 0x86, 0x9b, 0x90, 0xa1, 0xaa, 0xb7, 0xbc, 0xd5, 0xde, 0xc3, 0xc8,
+ 0xf9, 0xf2, 0xef, 0xe4, 0x3d, 0x36, 0x2b, 0x20, 0x11, 0x1a, 0x07, 0x0c,
+ 0x65, 0x6e, 0x73, 0x78, 0x49, 0x42, 0x5f, 0x54, 0xf7, 0xfc, 0xe1, 0xea,
+ 0xdb, 0xd0, 0xcd, 0xc6, 0xaf, 0xa4, 0xb9, 0xb2, 0x83, 0x88, 0x95, 0x9e,
+ 0x47, 0x4c, 0x51, 0x5a, 0x6b, 0x60, 0x7d, 0x76, 0x1f, 0x14, 0x09, 0x02,
+ 0x33, 0x38, 0x25, 0x2e, 0x8c, 0x87, 0x9a, 0x91, 0xa0, 0xab, 0xb6, 0xbd,
+ 0xd4, 0xdf, 0xc2, 0xc9, 0xf8, 0xf3, 0xee, 0xe5, 0x3c, 0x37, 0x2a, 0x21,
+ 0x10, 0x1b, 0x06, 0x0d, 0x64, 0x6f, 0x72, 0x79, 0x48, 0x43, 0x5e, 0x55,
+ 0x01, 0x0a, 0x17, 0x1c, 0x2d, 0x26, 0x3b, 0x30, 0x59, 0x52, 0x4f, 0x44,
+ 0x75, 0x7e, 0x63, 0x68, 0xb1, 0xba, 0xa7, 0xac, 0x9d, 0x96, 0x8b, 0x80,
+ 0xe9, 0xe2, 0xff, 0xf4, 0xc5, 0xce, 0xd3, 0xd8, 0x7a, 0x71, 0x6c, 0x67,
+ 0x56, 0x5d, 0x40, 0x4b, 0x22, 0x29, 0x34, 0x3f, 0x0e, 0x05, 0x18, 0x13,
+ 0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f,
+ 0xbe, 0xb5, 0xa8, 0xa3
+ ],
+
+ GDX: [
+ 0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f,
+ 0x5c, 0x51, 0x46, 0x4b, 0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3,
+ 0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b, 0xbb, 0xb6, 0xa1, 0xac,
+ 0x8f, 0x82, 0x95, 0x98, 0xd3, 0xde, 0xc9, 0xc4, 0xe7, 0xea, 0xfd, 0xf0,
+ 0x6b, 0x66, 0x71, 0x7c, 0x5f, 0x52, 0x45, 0x48, 0x03, 0x0e, 0x19, 0x14,
+ 0x37, 0x3a, 0x2d, 0x20, 0x6d, 0x60, 0x77, 0x7a, 0x59, 0x54, 0x43, 0x4e,
+ 0x05, 0x08, 0x1f, 0x12, 0x31, 0x3c, 0x2b, 0x26, 0xbd, 0xb0, 0xa7, 0xaa,
+ 0x89, 0x84, 0x93, 0x9e, 0xd5, 0xd8, 0xcf, 0xc2, 0xe1, 0xec, 0xfb, 0xf6,
+ 0xd6, 0xdb, 0xcc, 0xc1, 0xe2, 0xef, 0xf8, 0xf5, 0xbe, 0xb3, 0xa4, 0xa9,
+ 0x8a, 0x87, 0x90, 0x9d, 0x06, 0x0b, 0x1c, 0x11, 0x32, 0x3f, 0x28, 0x25,
+ 0x6e, 0x63, 0x74, 0x79, 0x5a, 0x57, 0x40, 0x4d, 0xda, 0xd7, 0xc0, 0xcd,
+ 0xee, 0xe3, 0xf4, 0xf9, 0xb2, 0xbf, 0xa8, 0xa5, 0x86, 0x8b, 0x9c, 0x91,
+ 0x0a, 0x07, 0x10, 0x1d, 0x3e, 0x33, 0x24, 0x29, 0x62, 0x6f, 0x78, 0x75,
+ 0x56, 0x5b, 0x4c, 0x41, 0x61, 0x6c, 0x7b, 0x76, 0x55, 0x58, 0x4f, 0x42,
+ 0x09, 0x04, 0x13, 0x1e, 0x3d, 0x30, 0x27, 0x2a, 0xb1, 0xbc, 0xab, 0xa6,
+ 0x85, 0x88, 0x9f, 0x92, 0xd9, 0xd4, 0xc3, 0xce, 0xed, 0xe0, 0xf7, 0xfa,
+ 0xb7, 0xba, 0xad, 0xa0, 0x83, 0x8e, 0x99, 0x94, 0xdf, 0xd2, 0xc5, 0xc8,
+ 0xeb, 0xe6, 0xf1, 0xfc, 0x67, 0x6a, 0x7d, 0x70, 0x53, 0x5e, 0x49, 0x44,
+ 0x0f, 0x02, 0x15, 0x18, 0x3b, 0x36, 0x21, 0x2c, 0x0c, 0x01, 0x16, 0x1b,
+ 0x38, 0x35, 0x22, 0x2f, 0x64, 0x69, 0x7e, 0x73, 0x50, 0x5d, 0x4a, 0x47,
+ 0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3,
+ 0x80, 0x8d, 0x9a, 0x97
+ ],
+
+ GEX: [
+ 0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62,
+ 0x48, 0x46, 0x54, 0x5a, 0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca,
+ 0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba, 0xdb, 0xd5, 0xc7, 0xc9,
+ 0xe3, 0xed, 0xff, 0xf1, 0xab, 0xa5, 0xb7, 0xb9, 0x93, 0x9d, 0x8f, 0x81,
+ 0x3b, 0x35, 0x27, 0x29, 0x03, 0x0d, 0x1f, 0x11, 0x4b, 0x45, 0x57, 0x59,
+ 0x73, 0x7d, 0x6f, 0x61, 0xad, 0xa3, 0xb1, 0xbf, 0x95, 0x9b, 0x89, 0x87,
+ 0xdd, 0xd3, 0xc1, 0xcf, 0xe5, 0xeb, 0xf9, 0xf7, 0x4d, 0x43, 0x51, 0x5f,
+ 0x75, 0x7b, 0x69, 0x67, 0x3d, 0x33, 0x21, 0x2f, 0x05, 0x0b, 0x19, 0x17,
+ 0x76, 0x78, 0x6a, 0x64, 0x4e, 0x40, 0x52, 0x5c, 0x06, 0x08, 0x1a, 0x14,
+ 0x3e, 0x30, 0x22, 0x2c, 0x96, 0x98, 0x8a, 0x84, 0xae, 0xa0, 0xb2, 0xbc,
+ 0xe6, 0xe8, 0xfa, 0xf4, 0xde, 0xd0, 0xc2, 0xcc, 0x41, 0x4f, 0x5d, 0x53,
+ 0x79, 0x77, 0x65, 0x6b, 0x31, 0x3f, 0x2d, 0x23, 0x09, 0x07, 0x15, 0x1b,
+ 0xa1, 0xaf, 0xbd, 0xb3, 0x99, 0x97, 0x85, 0x8b, 0xd1, 0xdf, 0xcd, 0xc3,
+ 0xe9, 0xe7, 0xf5, 0xfb, 0x9a, 0x94, 0x86, 0x88, 0xa2, 0xac, 0xbe, 0xb0,
+ 0xea, 0xe4, 0xf6, 0xf8, 0xd2, 0xdc, 0xce, 0xc0, 0x7a, 0x74, 0x66, 0x68,
+ 0x42, 0x4c, 0x5e, 0x50, 0x0a, 0x04, 0x16, 0x18, 0x32, 0x3c, 0x2e, 0x20,
+ 0xec, 0xe2, 0xf0, 0xfe, 0xd4, 0xda, 0xc8, 0xc6, 0x9c, 0x92, 0x80, 0x8e,
+ 0xa4, 0xaa, 0xb8, 0xb6, 0x0c, 0x02, 0x10, 0x1e, 0x34, 0x3a, 0x28, 0x26,
+ 0x7c, 0x72, 0x60, 0x6e, 0x44, 0x4a, 0x58, 0x56, 0x37, 0x39, 0x2b, 0x25,
+ 0x0f, 0x01, 0x13, 0x1d, 0x47, 0x49, 0x5b, 0x55, 0x7f, 0x71, 0x63, 0x6d,
+ 0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5,
+ 0x9f, 0x91, 0x83, 0x8d
+ ],
+
+ // Key Schedule Core
+ core:function(word,iteration)
+ {
+ /* rotate the 32-bit word 8 bits to the left */
+ word = this.rotate(word);
+ /* apply S-Box substitution on all 4 parts of the 32-bit word */
+ for (var i = 0; i < 4; ++i)
+ word[i] = this.sbox[word[i]];
+ /* XOR the output of the rcon operation with i to the first part (leftmost) only */
+ word[0] = word[0]^this.Rcon[iteration];
+ return word;
+ },
+
+ /* Rijndael's key expansion
+ * expands an 128,192,256 key into an 176,208,240 bytes key
+ *
+ * expandedKey is a pointer to an char array of large enough size
+ * key is a pointer to a non-expanded key
+ */
+ expandKey:function(key,size)
+ {
+ var expandedKeySize = (16*(this.numberOfRounds(size)+1));
+
+ /* current expanded keySize, in bytes */
+ var currentSize = 0;
+ var rconIteration = 1;
+ var t = []; // temporary 4-byte variable
+
+ var expandedKey = [];
+ for(var i = 0;i < expandedKeySize;i++)
+ expandedKey[i] = 0;
+
+ /* set the 16,24,32 bytes of the expanded key to the input key */
+ for (var j = 0; j < size; j++)
+ expandedKey[j] = key[j];
+ currentSize += size;
+
+ while (currentSize < expandedKeySize)
+ {
+ /* assign the previous 4 bytes to the temporary value t */
+ for (var k = 0; k < 4; k++)
+ t[k] = expandedKey[(currentSize - 4) + k];
+
+ /* every 16,24,32 bytes we apply the core schedule to t
+ * and increment rconIteration afterwards
+ */
+ if(currentSize % size == 0)
+ t = this.core(t, rconIteration++);
+
+ /* For 256-bit keys, we add an extra sbox to the calculation */
+ if(size == this.keySize.SIZE_256 && ((currentSize % size) == 16))
+ for(var l = 0; l < 4; l++)
+ t[l] = this.sbox[t[l]];
+
+ /* We XOR t with the four-byte block 16,24,32 bytes before the new expanded key.
+ * This becomes the next four bytes in the expanded key.
+ */
+ for(var m = 0; m < 4; m++) {
+ expandedKey[currentSize] = expandedKey[currentSize - size] ^ t[m];
+ currentSize++;
+ }
+ }
+ return expandedKey;
+ },
+
+ // Adds (XORs) the round key to the state
+ addRoundKey:function(state,roundKey)
+ {
+ for (var i = 0; i < 16; i++)
+ state[i] ^= roundKey[i];
+ return state;
+ },
+
+ // Creates a round key from the given expanded key and the
+ // position within the expanded key.
+ createRoundKey:function(expandedKey,roundKeyPointer)
+ {
+ var roundKey = [];
+ for (var i = 0; i < 4; i++)
+ for (var j = 0; j < 4; j++)
+ roundKey[j*4+i] = expandedKey[roundKeyPointer + i*4 + j];
+ return roundKey;
+ },
+
+ /* substitute all the values from the state with the value in the SBox
+ * using the state value as index for the SBox
+ */
+ subBytes:function(state,isInv)
+ {
+ for (var i = 0; i < 16; i++)
+ state[i] = isInv?this.rsbox[state[i]]:this.sbox[state[i]];
+ return state;
+ },
+
+ /* iterate over the 4 rows and call shiftRow() with that row */
+ shiftRows:function(state,isInv)
+ {
+ for (var i = 0; i < 4; i++)
+ state = this.shiftRow(state,i*4, i,isInv);
+ return state;
+ },
+
+ /* each iteration shifts the row to the left by 1 */
+ shiftRow:function(state,statePointer,nbr,isInv)
+ {
+ for (var i = 0; i < nbr; i++)
+ {
+ if(isInv)
+ {
+ var tmp = state[statePointer + 3];
+ for (var j = 3; j > 0; j--)
+ state[statePointer + j] = state[statePointer + j-1];
+ state[statePointer] = tmp;
+ }
+ else
+ {
+ var tmp = state[statePointer];
+ for (var j = 0; j < 3; j++)
+ state[statePointer + j] = state[statePointer + j+1];
+ state[statePointer + 3] = tmp;
+ }
+ }
+ return state;
+ },
+
+ // galois multiplication of 8 bit characters a and b
+ galois_multiplication:function(a,b)
+ {
+ var p = 0;
+ for(var counter = 0; counter < 8; counter++)
+ {
+ if((b & 1) == 1)
+ p ^= a;
+ if(p > 0x100) p ^= 0x100;
+ var hi_bit_set = (a & 0x80); //keep p 8 bit
+ a <<= 1;
+ if(a > 0x100) a ^= 0x100; //keep a 8 bit
+ if(hi_bit_set == 0x80)
+ a ^= 0x1b;
+ if(a > 0x100) a ^= 0x100; //keep a 8 bit
+ b >>= 1;
+ if(b > 0x100) b ^= 0x100; //keep b 8 bit
+ }
+ return p;
+ },
+
+ // galois multipication of the 4x4 matrix
+ mixColumns:function(state,isInv)
+ {
+ var column = [];
+ /* iterate over the 4 columns */
+ for (var i = 0; i < 4; i++)
+ {
+ /* construct one column by iterating over the 4 rows */
+ for (var j = 0; j < 4; j++)
+ column[j] = state[(j*4)+i];
+ /* apply the mixColumn on one column */
+ column = this.mixColumn(column,isInv);
+ /* put the values back into the state */
+ for (var k = 0; k < 4; k++)
+ state[(k*4)+i] = column[k];
+ }
+ return state;
+ },
+
+ // galois multipication of 1 column of the 4x4 matrix
+ mixColumn:function(column,isInv)
+ {
+ var mult = [];
+ if(isInv)
+ mult = [14,9,13,11];
+ else
+ mult = [2,1,1,3];
+ var cpy = [];
+ for(var i = 0; i < 4; i++)
+ cpy[i] = column[i];
+
+ column[0] = this.galois_multiplication(cpy[0],mult[0]) ^
+ this.galois_multiplication(cpy[3],mult[1]) ^
+ this.galois_multiplication(cpy[2],mult[2]) ^
+ this.galois_multiplication(cpy[1],mult[3]);
+ column[1] = this.galois_multiplication(cpy[1],mult[0]) ^
+ this.galois_multiplication(cpy[0],mult[1]) ^
+ this.galois_multiplication(cpy[3],mult[2]) ^
+ this.galois_multiplication(cpy[2],mult[3]);
+ column[2] = this.galois_multiplication(cpy[2],mult[0]) ^
+ this.galois_multiplication(cpy[1],mult[1]) ^
+ this.galois_multiplication(cpy[0],mult[2]) ^
+ this.galois_multiplication(cpy[3],mult[3]);
+ column[3] = this.galois_multiplication(cpy[3],mult[0]) ^
+ this.galois_multiplication(cpy[2],mult[1]) ^
+ this.galois_multiplication(cpy[1],mult[2]) ^
+ this.galois_multiplication(cpy[0],mult[3]);
+ return column;
+ },
+
+ // applies the 4 operations of the forward round in sequence
+ round:function(state, roundKey)
+ {
+ state = this.subBytes(state,false);
+ state = this.shiftRows(state,false);
+ state = this.mixColumns(state,false);
+ state = this.addRoundKey(state, roundKey);
+ return state;
+ },
+
+ // applies the 4 operations of the inverse round in sequence
+ invRound:function(state,roundKey)
+ {
+ state = this.shiftRows(state,true);
+ state = this.subBytes(state,true);
+ state = this.addRoundKey(state, roundKey);
+ state = this.mixColumns(state,true);
+ return state;
+ },
+
+ /*
+ * Perform the initial operations, the standard round, and the final operations
+ * of the forward aes, creating a round key for each round
+ */
+ main:function(state,expandedKey,nbrRounds)
+ {
+ state = this.addRoundKey(state, this.createRoundKey(expandedKey,0));
+ for (var i = 1; i < nbrRounds; i++)
+ state = this.round(state, this.createRoundKey(expandedKey,16*i));
+ state = this.subBytes(state,false);
+ state = this.shiftRows(state,false);
+ state = this.addRoundKey(state, this.createRoundKey(expandedKey,16*nbrRounds));
+ return state;
+ },
+
+ /*
+ * Perform the initial operations, the standard round, and the final operations
+ * of the inverse aes, creating a round key for each round
+ */
+ invMain:function(state, expandedKey, nbrRounds)
+ {
+ state = this.addRoundKey(state, this.createRoundKey(expandedKey,16*nbrRounds));
+ for (var i = nbrRounds-1; i > 0; i--)
+ state = this.invRound(state, this.createRoundKey(expandedKey,16*i));
+ state = this.shiftRows(state,true);
+ state = this.subBytes(state,true);
+ state = this.addRoundKey(state, this.createRoundKey(expandedKey,0));
+ return state;
+ },
+
+ numberOfRounds:function(size)
+ {
+ var nbrRounds;
+ switch (size) /* set the number of rounds */
+ {
+ case this.keySize.SIZE_128:
+ nbrRounds = 10;
+ break;
+ case this.keySize.SIZE_192:
+ nbrRounds = 12;
+ break;
+ case this.keySize.SIZE_256:
+ nbrRounds = 14;
+ break;
+ default:
+ return null;
+ break;
+ }
+ return nbrRounds;
+ },
+
+ // encrypts a 128 bit input block against the given key of size specified
+ encrypt:function(input,key,size)
+ {
+ var output = [];
+ var block = []; /* the 128 bit block to encode */
+ var nbrRounds = this.numberOfRounds(size);
+ /* Set the block values, for the block:
+ * a0,0 a0,1 a0,2 a0,3
+ * a1,0 a1,1 a1,2 a1,3
+ * a2,0 a2,1 a2,2 a2,3
+ * a3,0 a3,1 a3,2 a3,3
+ * the mapping order is a0,0 a1,0 a2,0 a3,0 a0,1 a1,1 ... a2,3 a3,3
+ */
+ for (var i = 0; i < 4; i++) /* iterate over the columns */
+ for (var j = 0; j < 4; j++) /* iterate over the rows */
+ block[(i+(j*4))] = input[(i*4)+j];
+
+ /* expand the key into an 176, 208, 240 bytes key */
+ var expandedKey = this.expandKey(key, size); /* the expanded key */
+ /* encrypt the block using the expandedKey */
+ block = this.main(block, expandedKey, nbrRounds);
+ for (var k = 0; k < 4; k++) /* unmap the block again into the output */
+ for (var l = 0; l < 4; l++) /* iterate over the rows */
+ output[(k*4)+l] = block[(k+(l*4))];
+ return output;
+ },
+
+ // decrypts a 128 bit input block against the given key of size specified
+ decrypt:function(input, key, size)
+ {
+ var output = [];
+ var block = []; /* the 128 bit block to decode */
+ var nbrRounds = this.numberOfRounds(size);
+ /* Set the block values, for the block:
+ * a0,0 a0,1 a0,2 a0,3
+ * a1,0 a1,1 a1,2 a1,3
+ * a2,0 a2,1 a2,2 a2,3
+ * a3,0 a3,1 a3,2 a3,3
+ * the mapping order is a0,0 a1,0 a2,0 a3,0 a0,1 a1,1 ... a2,3 a3,3
+ */
+ for (var i = 0; i < 4; i++) /* iterate over the columns */
+ for (var j = 0; j < 4; j++) /* iterate over the rows */
+ block[(i+(j*4))] = input[(i*4)+j];
+ /* expand the key into an 176, 208, 240 bytes key */
+ var expandedKey = this.expandKey(key, size);
+ /* decrypt the block using the expandedKey */
+ block = this.invMain(block, expandedKey, nbrRounds);
+ for (var k = 0; k < 4; k++)/* unmap the block again into the output */
+ for (var l = 0; l < 4; l++)/* iterate over the rows */
+ output[(k*4)+l] = block[(k+(l*4))];
+ return output;
+ }
+ },
+ /*
+ * END AES SECTION
+ */
+
+ /*
+ * START MODE OF OPERATION SECTION
+ */
+ //structure of supported modes of operation
+ modeOfOperation:{
+ OFB:0,
+ CFB:1,
+ CBC:2
+ },
+
+ // gets a properly padded block
+ getPaddedBlock: function(bytesIn,start,end,mode)
+ {
+ if(end - start > 16)
+ end = start + 16;
+
+ var array = bytesIn.slice(start, end);
+
+ if (mode == this.modeOfOperation.CBC)
+ {
+ var cpad = 16 - array.length;
+ while(array.length < 16)
+ {
+ array.push(cpad);
+ }
+ }
+
+ return array;
+ },
+
+ /*
+ * Mode of Operation Encryption
+ * bytesIn - Input String as array of bytes
+ * mode - mode of type modeOfOperation
+ * key - a number array of length 'size'
+ * size - the bit length of the key
+ * iv - the 128 bit number array Initialization Vector
+ */
+ encrypt: function (bytesIn, mode, key, size, iv)
+ {
+ if(key.length%size)
+ {
+ throw 'Key length does not match specified size.';
+ }
+ if(iv.length%16)
+ {
+ throw 'iv length must be 128 bits.';
+ }
+ // the AES input/output
+ var byteArray = [];
+ var input = [];
+ var output = [];
+ var ciphertext = [];
+ var cipherOut = [];
+ // char firstRound
+ var firstRound = true;
+ if (bytesIn !== null)
+ {
+ for (var j = 0;j < Math.ceil(bytesIn.length/16); j++)
+ {
+ var start = j*16;
+ var end = j*16+16;
+ if(j*16+16 > bytesIn.length)
+ end = bytesIn.length;
+ byteArray = this.getPaddedBlock(bytesIn,start,end,mode);
+ if (mode == this.modeOfOperation.CFB)
+ {
+ if (firstRound)
+ {
+ output = this.aes.encrypt(iv, key, size);
+ firstRound = false;
+ }
+ else
+ output = this.aes.encrypt(input, key, size);
+ for (var i = 0; i < 16; i++)
+ ciphertext[i] = byteArray[i] ^ output[i];
+ for(var k = 0;k < end-start;k++)
+ cipherOut.push(ciphertext[k]);
+ input = ciphertext;
+ }
+ else if (mode == this.modeOfOperation.OFB)
+ {
+ if (firstRound)
+ {
+ output = this.aes.encrypt(iv, key, size);
+ firstRound = false;
+ }
+ else
+ output = this.aes.encrypt(input, key, size);
+ for (var i = 0; i < 16; i++)
+ ciphertext[i] = byteArray[i] ^ output[i];
+ for(var k = 0;k < end-start;k++)
+ cipherOut.push(ciphertext[k]);
+ input = output;
+ }
+ else if (mode == this.modeOfOperation.CBC)
+ {
+ for (var i = 0; i < 16; i++)
+ input[i] = byteArray[i] ^ ((firstRound) ? iv[i] : ciphertext[i]);
+ firstRound = false;
+ ciphertext = this.aes.encrypt(input, key, size);
+ // always 16 bytes because of the padding for CBC
+ for(var k = 0;k < 16;k++)
+ cipherOut.push(ciphertext[k]);
+ }
+ }
+ }
+ return {mode:mode,originalsize:bytesIn.length,cipher:cipherOut};
+ },
+
+ /*
+ * Mode of Operation Decryption
+ * cipherIn - Encrypted String as array of bytes
+ * originalsize - The unencrypted string length - required for CBC
+ * mode - mode of type modeOfOperation
+ * key - a number array of length 'size'
+ * size - the bit length of the key
+ * iv - the 128 bit number array Initialization Vector
+ */
+ decrypt:function(cipherIn,originalsize,mode,key,size,iv)
+ {
+ if(key.length%size)
+ {
+ throw 'Key length does not match specified size.';
+ return null;
+ }
+ if(iv.length%16)
+ {
+ throw 'iv length must be 128 bits.';
+ }
+ // the AES input/output
+ var ciphertext = [];
+ var input = [];
+ var output = [];
+ var byteArray = [];
+ var bytesOut = [];
+ // char firstRound
+ var firstRound = true;
+ if (cipherIn !== null)
+ {
+ for (var j = 0;j < Math.ceil(cipherIn.length/16); j++)
+ {
+ var start = j*16;
+ var end = j*16+16;
+ if(j*16+16 > cipherIn.length)
+ end = cipherIn.length;
+ ciphertext = this.getPaddedBlock(cipherIn,start,end,mode);
+ if (mode == this.modeOfOperation.CFB)
+ {
+ if (firstRound)
+ {
+ output = this.aes.encrypt(iv, key, size);
+ firstRound = false;
+ }
+ else
+ output = this.aes.encrypt(input, key, size);
+ for (i = 0; i < 16; i++)
+ byteArray[i] = output[i] ^ ciphertext[i];
+ for(var k = 0;k < end-start;k++)
+ bytesOut.push(byteArray[k]);
+ input = ciphertext;
+ }
+ else if (mode == this.modeOfOperation.OFB)
+ {
+ if (firstRound)
+ {
+ output = this.aes.encrypt(iv, key, size);
+ firstRound = false;
+ }
+ else
+ output = this.aes.encrypt(input, key, size);
+ for (i = 0; i < 16; i++)
+ byteArray[i] = output[i] ^ ciphertext[i];
+ for(var k = 0;k < end-start;k++)
+ bytesOut.push(byteArray[k]);
+ input = output;
+ }
+ else if(mode == this.modeOfOperation.CBC)
+ {
+ output = this.aes.decrypt(ciphertext, key, size);
+ for (i = 0; i < 16; i++)
+ byteArray[i] = ((firstRound) ? iv[i] : input[i]) ^ output[i];
+ firstRound = false;
+ if (originalsize < end)
+ for(var k = 0;k < originalsize-start;k++)
+ bytesOut.push(byteArray[k]);
+ else
+ for(var k = 0;k < end-start;k++)
+ bytesOut.push(byteArray[k]);
+ input = ciphertext;
+ }
+ }
+ }
+ return bytesOut;
+ }
+ /*
+ * END MODE OF OPERATION SECTION
+ */
+};
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 01:35:54 +0000