[CRYPTO]: Add Whirlpool digest algorithm.

Given the recent potential weaknesses in the SHA and MD families,
I thought it might not be a bad idea to include another hash/digest
algorithm in the kernel.

So here is Whirlpool.  I chose it for a couple of reasons.

o - It is by the same people who did Khazad. I feel pretty good about their work.
o - It has been evaluated by NESSIE
  https://www.cosic.esat.kuleuven.ac.be/nessie/reports/phase1/sagwp3-037_1.pdf
o - NESSIE has accepted it as one of the cryptographic primitives
o - It will be part of an ISO standard in the revised ISO/IEC 10118-3:2003(E) standard, thanks to
NESSIE
o - It is patent free and has an implementation in the public domain.
Signed-off-by: Aaron Grothe <ajgrothe@yahoo.com>
Signed-off-by: James Morris <jmorris@redhat.com>
Signed-off-by: David S. Miller <davem@redhat.com>

Documentation/crypto/api-intro.txt

@@ -227,6 +227,9 @@ TEA/XTEA algorithm contributors:
 Khazad algorithm contributors:
   Aaron Grothe
 
+Whirlpool algorithm contributors:
+  Aaron Grothe
+
 Generic scatterwalk code by Adam J. Richter <adam@yggdrasil.com>
 
 Please send any credits updates or corrections to:

crypto/Kconfig

@@ -67,6 +67,21 @@ config CRYPTO_SHA512
 	  This code also includes SHA-384, a 384 bit hash with 192 bits
 	  of security against collision attacks.
 
+config CRYPTO_WHIRLPOOL
+	tristate "Whirlpool digest algorithm"
+	depends on CRYPTO
+	help
+	  Whirlpool hash algorithm.
+
+	  Whirlpool is part of the NESSIE cryptographic primtives.
+	  Whirlpool works on messages shorter than 2^256 bits and
+	  produces a 512 bit hash.
+
+	  Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
+
+	  See also:
+	  http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html
+
 config CRYPTO_DES
 	tristate "DES and Triple DES EDE cipher algorithms"
 	depends on CRYPTO

crypto/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_CRYPTO_MD5) += md5.o
 obj-$(CONFIG_CRYPTO_SHA1) += sha1.o
 obj-$(CONFIG_CRYPTO_SHA256) += sha256.o
 obj-$(CONFIG_CRYPTO_SHA512) += sha512.o
+obj-$(CONFIG_CRYPTO_WHIRLPOOL) += whirlpool.o
 obj-$(CONFIG_CRYPTO_DES) += des.o
 obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish.o
 obj-$(CONFIG_CRYPTO_TWOFISH) += twofish.o

crypto/tcrypt.c

@@ -61,7 +61,8 @@ static char *tvmem;
 static char *check[] = {
 	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
 	"twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", 
-	"arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea", NULL
+	"arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea", 
+	"whirlpool", NULL
 };
 
 static void
@@ -680,6 +681,7 @@ do_test(void)
 
 		test_hash("sha384", sha384_tv_template, SHA384_TEST_VECTORS);
 		test_hash("sha512", sha512_tv_template, SHA512_TEST_VECTORS);
+		test_hash("whirlpool", whirlpool_tv_template, WHIRLPOOL_TEST_VECTORS);
 		test_deflate();
 		test_crc32c();
 #ifdef CONFIG_CRYPTO_HMAC
@@ -791,6 +793,11 @@ do_test(void)
 		test_cipher ("khazad", MODE_ECB, DECRYPT, khazad_dec_tv_template, KHAZAD_DEC_TEST_VECTORS);
 		break;
 
+	case 22:
+		test_hash("whirlpool", whirlpool_tv_template, WHIRLPOOL_TEST_VECTORS);
+		break;
+
+
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:
 		test_hmac("md5", hmac_md5_tv_template, HMAC_MD5_TEST_VECTORS);

crypto/tcrypt.h

@@ -301,6 +301,110 @@ struct hash_testvec sha512_tv_template[] = {
 	},
 };
 
+
+/*
+ * WHIRLPOOL test vectors from Whirlpool package 
+ * by Vincent Rijmen and Paulo S. L. M. Barreto as part of the NESSIE
+ * submission
+ */
+#define WHIRLPOOL_TEST_VECTORS	8
+
+struct hash_testvec whirlpool_tv_template[] = {
+	{ 
+		.plaintext = "",
+		.psize	= 0,
+		.digest	= { 0x19, 0xFA, 0x61, 0xD7, 0x55, 0x22, 0xA4, 0x66,
+			    0x9B, 0x44, 0xE3, 0x9C, 0x1D, 0x2E, 0x17, 0x26,
+			    0xC5, 0x30, 0x23, 0x21, 0x30, 0xD4, 0x07, 0xF8,
+			    0x9A, 0xFE, 0xE0, 0x96, 0x49, 0x97, 0xF7, 0xA7,
+			    0x3E, 0x83, 0xBE, 0x69, 0x8B, 0x28, 0x8F, 0xEB,
+			    0xCF, 0x88, 0xE3, 0xE0, 0x3C, 0x4F, 0x07, 0x57,
+			    0xEA, 0x89, 0x64, 0xE5, 0x9B, 0x63, 0xD9, 0x37,
+			    0x08, 0xB1, 0x38, 0xCC, 0x42, 0xA6, 0x6E, 0xB3 },
+
+
+	}, {
+		.plaintext = "a",
+		.psize	= 1,
+		.digest	= { 0x8A, 0xCA, 0x26, 0x02, 0x79, 0x2A, 0xEC, 0x6F,
+			    0x11, 0xA6, 0x72, 0x06, 0x53, 0x1F, 0xB7, 0xD7,
+			    0xF0, 0xDF, 0xF5, 0x94, 0x13, 0x14, 0x5E, 0x69,
+			    0x73, 0xC4, 0x50, 0x01, 0xD0, 0x08, 0x7B, 0x42,
+			    0xD1, 0x1B, 0xC6, 0x45, 0x41, 0x3A, 0xEF, 0xF6,
+			    0x3A, 0x42, 0x39, 0x1A, 0x39, 0x14, 0x5A, 0x59,
+			    0x1A, 0x92, 0x20, 0x0D, 0x56, 0x01, 0x95, 0xE5,
+			    0x3B, 0x47, 0x85, 0x84, 0xFD, 0xAE, 0x23, 0x1A },
+	}, {
+		.plaintext = "abc",
+		.psize	= 3,
+		.digest	= { 0x4E, 0x24, 0x48, 0xA4, 0xC6, 0xF4, 0x86, 0xBB,
+			    0x16, 0xB6, 0x56, 0x2C, 0x73, 0xB4, 0x02, 0x0B,
+			    0xF3, 0x04, 0x3E, 0x3A, 0x73, 0x1B, 0xCE, 0x72,
+			    0x1A, 0xE1, 0xB3, 0x03, 0xD9, 0x7E, 0x6D, 0x4C,
+			    0x71, 0x81, 0xEE, 0xBD, 0xB6, 0xC5, 0x7E, 0x27,
+			    0x7D, 0x0E, 0x34, 0x95, 0x71, 0x14, 0xCB, 0xD6,
+			    0xC7, 0x97, 0xFC, 0x9D, 0x95, 0xD8, 0xB5, 0x82,
+			    0xD2, 0x25, 0x29, 0x20, 0x76, 0xD4, 0xEE, 0xF5 },
+	}, {
+		.plaintext = "message digest",
+		.psize	= 14,
+		.digest	= { 0x37, 0x8C, 0x84, 0xA4, 0x12, 0x6E, 0x2D, 0xC6, 
+			    0xE5, 0x6D, 0xCC, 0x74, 0x58, 0x37, 0x7A, 0xAC, 
+			    0x83, 0x8D, 0x00, 0x03, 0x22, 0x30, 0xF5, 0x3C, 
+			    0xE1, 0xF5, 0x70, 0x0C, 0x0F, 0xFB, 0x4D, 0x3B, 
+			    0x84, 0x21, 0x55, 0x76, 0x59, 0xEF, 0x55, 0xC1, 
+			    0x06, 0xB4, 0xB5, 0x2A, 0xC5, 0xA4, 0xAA, 0xA6, 
+			    0x92, 0xED, 0x92, 0x00, 0x52, 0x83, 0x8F, 0x33, 
+			    0x62, 0xE8, 0x6D, 0xBD, 0x37, 0xA8, 0x90, 0x3E },
+	}, {
+		.plaintext = "abcdefghijklmnopqrstuvwxyz",
+		.psize	= 26,
+		.digest	= { 0xF1, 0xD7, 0x54, 0x66, 0x26, 0x36, 0xFF, 0xE9,
+			    0x2C, 0x82, 0xEB, 0xB9, 0x21, 0x2A, 0x48, 0x4A,
+			    0x8D, 0x38, 0x63, 0x1E, 0xAD, 0x42, 0x38, 0xF5,
+			    0x44, 0x2E, 0xE1, 0x3B, 0x80, 0x54, 0xE4, 0x1B,
+			    0x08, 0xBF, 0x2A, 0x92, 0x51, 0xC3, 0x0B, 0x6A,
+			    0x0B, 0x8A, 0xAE, 0x86, 0x17, 0x7A, 0xB4, 0xA6,
+			    0xF6, 0x8F, 0x67, 0x3E, 0x72, 0x07, 0x86, 0x5D,
+			    0x5D, 0x98, 0x19, 0xA3, 0xDB, 0xA4, 0xEB, 0x3B },
+	}, {
+		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+			     "abcdefghijklmnopqrstuvwxyz0123456789",
+		.psize	= 62,
+		.digest	= { 0xDC, 0x37, 0xE0, 0x08, 0xCF, 0x9E, 0xE6, 0x9B,
+			    0xF1, 0x1F, 0x00, 0xED, 0x9A, 0xBA, 0x26, 0x90,
+			    0x1D, 0xD7, 0xC2, 0x8C, 0xDE, 0xC0, 0x66, 0xCC,
+			    0x6A, 0xF4, 0x2E, 0x40, 0xF8, 0x2F, 0x3A, 0x1E,
+			    0x08, 0xEB, 0xA2, 0x66, 0x29, 0x12, 0x9D, 0x8F,
+			    0xB7, 0xCB, 0x57, 0x21, 0x1B, 0x92, 0x81, 0xA6,
+			    0x55, 0x17, 0xCC, 0x87, 0x9D, 0x7B, 0x96, 0x21,
+			    0x42, 0xC6, 0x5F, 0x5A, 0x7A, 0xF0, 0x14, 0x67 },
+	}, {
+		.plaintext = "1234567890123456789012345678901234567890"
+			     "1234567890123456789012345678901234567890",
+		.psize	= 80,
+		.digest	= { 0x46, 0x6E, 0xF1, 0x8B, 0xAB, 0xB0, 0x15, 0x4D,
+			    0x25, 0xB9, 0xD3, 0x8A, 0x64, 0x14, 0xF5, 0xC0,
+			    0x87, 0x84, 0x37, 0x2B, 0xCC, 0xB2, 0x04, 0xD6,
+			    0x54, 0x9C, 0x4A, 0xFA, 0xDB, 0x60, 0x14, 0x29,
+			    0x4D, 0x5B, 0xD8, 0xDF, 0x2A, 0x6C, 0x44, 0xE5,
+			    0x38, 0xCD, 0x04, 0x7B, 0x26, 0x81, 0xA5, 0x1A,
+			    0x2C, 0x60, 0x48, 0x1E, 0x88, 0xC5, 0xA2, 0x0B,
+			    0x2C, 0x2A, 0x80, 0xCF, 0x3A, 0x9A, 0x08, 0x3B },
+	}, {
+		.plaintext = "abcdbcdecdefdefgefghfghighijhijk",
+		.psize	= 32,
+		.digest	= { 0x2A, 0x98, 0x7E, 0xA4, 0x0F, 0x91, 0x70, 0x61, 
+			    0xF5, 0xD6, 0xF0, 0xA0, 0xE4, 0x64, 0x4F, 0x48,
+			    0x8A, 0x7A, 0x5A, 0x52, 0xDE, 0xEE, 0x65, 0x62,
+			    0x07, 0xC5, 0x62, 0xF9, 0x88, 0xE9, 0x5C, 0x69,
+			    0x16, 0xBD, 0xC8, 0x03, 0x1B, 0xC5, 0xBE, 0x1B,
+			    0x7B, 0x94, 0x76, 0x39, 0xFE, 0x05, 0x0B, 0x56,
+			    0x93, 0x9B, 0xAA, 0xA0, 0xAD, 0xFF, 0x9A, 0xE6,
+			    0x74, 0x5B, 0x7B, 0x18, 0x1C, 0x3B, 0xE3, 0xFD },
+	},
+};
+
 #ifdef CONFIG_CRYPTO_HMAC
 /*
  * HMAC-MD5 test vectors from RFC2202