[CRYPTO]: Add support for SHA-386 and SHA-512

- Merged SHA-384 and SHA-512 code from Kyle McMartin
  <kyle@gondolin.debian.net>
- Added test vectors.
- Documentation and credits updates.

Documentation/crypto/api-intro.txt

@@ -80,6 +80,10 @@ should also be added:
   alias digest_null crypto_null
   alias compress_null crypto_null
 
+The SHA384 algorithm shares code within the SHA512 module, so you'll
+also need:
+  alias sha384 sha512
+
 
 DEVELOPER NOTES
 
@@ -182,7 +186,7 @@ Original developers of the crypto algorithms:
   Andrew Tridgell and Steve French (MD4)
   Colin Plumb (MD5)
   Steve Reid (SHA1)
-  Jean-Luc Cooke (SHA256)
+  Jean-Luc Cooke (SHA256, SHA384, SHA512)
   Kazunori Miyazawa / USAGI (HMAC)
   Matthew Skala (Twofish)
   Dag Arne Osvik (Serpent)
@@ -201,8 +205,10 @@ Twofish algorithm contributors:
   Werner Koch
   Marc Mutz
 
-SHA256 algorithm contributors:
+SHA256/384/512 algorithm contributors:
   Andrew McDonald
+  Kyle McMartin
+  Herbert Valerio Riedel
   
 AES algorithm contributors:
   Alexander Kjeldaas

crypto/Kconfig

@@ -53,6 +53,18 @@ config CRYPTO_SHA256
 	  This version of SHA implements a 256 bit hash with 128 bits of
 	  security against collision attacks.
 
+config CRYPTO_SHA512
+	tristate "SHA384 and SHA512 digest algorithms"
+	depends on CRYPTO
+	help
+	  SHA512 secure hash standard (DFIPS 180-2).
+	  
+	  This version of SHA implements a 512 bit hash with 256 bits of
+	  security against collision attacks.
+
+	  This code also includes SHA-384, a 384 bit hash with 192 bits
+	  of security against collision attacks.
+
 config CRYPTO_DES
 	tristate "DES and Triple DES EDE cipher algorithms"
 	depends on CRYPTO

crypto/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_CRYPTO_MD4) += md4.o
 obj-$(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_DES) += des.o
 obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish.o
 obj-$(CONFIG_CRYPTO_TWOFISH) += twofish.o

crypto/tcrypt.c

@@ -48,7 +48,7 @@ static char *tvmem;
 
 static char *check[] = {
 	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
-	"twofish", "serpent",
+	"twofish", "serpent", "sha384", "sha512",
 	 NULL
 };
 
@@ -549,6 +549,110 @@ test_sha256(void)
 	crypto_free_tfm(tfm);
 }
 
+static void
+test_sha384(void)
+{
+	char *p;
+	unsigned int i;
+	struct crypto_tfm *tfm;
+	struct sha384_testvec *sha384_tv;
+	struct scatterlist sg[2];
+	unsigned int tsize;
+	char result[SHA384_DIGEST_SIZE];
+
+	printk("\ntesting sha384\n");
+
+	tsize = sizeof (sha384_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		return;
+	}
+
+	memcpy(tvmem, sha384_tv_template, tsize);
+	sha384_tv = (void *) tvmem;
+
+	tfm = crypto_alloc_tfm("sha384", 0);
+	if (tfm == NULL) {
+		printk("failed to load transform for sha384\n");
+		return;
+	}
+
+	for (i = 0; i < SHA384_TEST_VECTORS; i++) {
+		printk("test %u:\n", i + 1);
+		memset(result, 0, sizeof (result));
+
+		p = sha384_tv[i].plaintext;
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length = strlen(sha384_tv[i].plaintext);
+
+		crypto_digest_init(tfm);
+		crypto_digest_update(tfm, sg, 1);
+		crypto_digest_final(tfm, result);
+
+		hexdump(result, crypto_tfm_alg_digestsize(tfm));
+		printk("%s\n",
+		       memcmp(result, sha384_tv[i].digest,
+			      crypto_tfm_alg_digestsize(tfm)) ? "fail" :
+		       "pass");
+	}
+
+	crypto_free_tfm(tfm);
+}
+
+static void
+test_sha512(void)
+{
+	char *p;
+	unsigned int i;
+	struct crypto_tfm *tfm;
+	struct sha512_testvec *sha512_tv;
+	struct scatterlist sg[2];
+	unsigned int tsize;
+	char result[SHA512_DIGEST_SIZE];
+
+	printk("\ntesting sha512\n");
+
+	tsize = sizeof (sha512_tv_template);
+	if (tsize > TVMEMSIZE) {
+		printk("template (%u) too big for tvmem (%u)\n", tsize,
+		       TVMEMSIZE);
+		return;
+	}
+
+	memcpy(tvmem, sha512_tv_template, tsize);
+	sha512_tv = (void *) tvmem;
+
+	tfm = crypto_alloc_tfm("sha512", 0);
+	if (tfm == NULL) {
+		printk("failed to load transform for sha512\n");
+		return;
+	}
+
+	for (i = 0; i < SHA512_TEST_VECTORS; i++) {
+		printk("test %u:\n", i + 1);
+		memset(result, 0, sizeof (result));
+
+		p = sha512_tv[i].plaintext;
+		sg[0].page = virt_to_page(p);
+		sg[0].offset = ((long) p & ~PAGE_MASK);
+		sg[0].length = strlen(sha512_tv[i].plaintext);
+
+		crypto_digest_init(tfm);
+		crypto_digest_update(tfm, sg, 1);
+		crypto_digest_final(tfm, result);
+
+		hexdump(result, crypto_tfm_alg_digestsize(tfm));
+		printk("%s\n",
+		       memcmp(result, sha512_tv[i].digest,
+			      crypto_tfm_alg_digestsize(tfm)) ? "fail" :
+		       "pass");
+	}
+
+	crypto_free_tfm(tfm);
+}
+
 void
 test_des(void)
 {
@@ -2117,6 +2221,8 @@ do_test(void)
 		test_twofish();
 		test_serpent();
 		test_aes();
+		test_sha384();
+		test_sha512();
 #ifdef CONFIG_CRYPTO_HMAC
 		test_hmac_md5();
 		test_hmac_sha1();
@@ -2164,6 +2270,14 @@ do_test(void)
 		test_aes();
 		break;
 
+	case 11:
+		test_sha384();
+		break;
+		
+	case 12:
+		test_sha512();
+		break;
+
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:
 		test_hmac_md5();

crypto/tcrypt.h

@@ -20,6 +20,8 @@
 #define MD4_DIGEST_SIZE		16
 #define SHA1_DIGEST_SIZE	20
 #define SHA256_DIGEST_SIZE	32
+#define SHA384_DIGEST_SIZE	48
+#define SHA512_DIGEST_SIZE	64
 
 /*
  * MD4 test vectors from RFC1320
@@ -590,6 +592,113 @@ struct sha256_testvec {
 	},
 };
 
+/*
+ * SHA384 test vectors from from NIST and kerneli
+ */
+#define SHA384_TEST_VECTORS	4
+
+struct sha384_testvec {
+	char plaintext[128];
+	char digest[SHA384_DIGEST_SIZE];
+} sha384_tv_template[] = {
+
+	{ "abc",
+	  { 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b,
+	    0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07,
+	    0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63,
+	    0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed,
+	    0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23,
+	    0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7 }
+	},
+	
+	{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	  { 0x33, 0x91, 0xfd, 0xdd, 0xfc, 0x8d, 0xc7, 0x39,
+	    0x37, 0x07, 0xa6, 0x5b, 0x1b, 0x47, 0x09, 0x39,
+	    0x7c, 0xf8, 0xb1, 0xd1, 0x62, 0xaf, 0x05, 0xab,
+	    0xfe, 0x8f, 0x45, 0x0d, 0xe5, 0xf3, 0x6b, 0xc6,
+	    0xb0, 0x45, 0x5a, 0x85, 0x20, 0xbc, 0x4e, 0x6f,
+	    0x5f, 0xe9, 0x5b, 0x1f, 0xe3, 0xc8, 0x45, 0x2b  }
+	},
+	
+	{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+	  "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
+	  { 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8,
+	    0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47,
+	    0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2,
+	    0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12,
+	    0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9,
+	    0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39  }
+	},
+	
+	{ "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcd"
+	  "efghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz",
+	  { 0x3d, 0x20, 0x89, 0x73, 0xab, 0x35, 0x08, 0xdb,
+	    0xbd, 0x7e, 0x2c, 0x28, 0x62, 0xba, 0x29, 0x0a,
+	    0xd3, 0x01, 0x0e, 0x49, 0x78, 0xc1, 0x98, 0xdc,
+	    0x4d, 0x8f, 0xd0, 0x14, 0xe5, 0x82, 0x82, 0x3a,
+	    0x89, 0xe1, 0x6f, 0x9b, 0x2a, 0x7b, 0xbc, 0x1a,
+	    0xc9, 0x38, 0xe2, 0xd1, 0x99, 0xe8, 0xbe, 0xa4 }
+	},
+};
+
+/*
+ * SHA512 test vectors from from NIST and kerneli
+ */
+#define SHA512_TEST_VECTORS	4
+
+struct sha512_testvec {
+	char plaintext[128];
+	char digest[SHA512_DIGEST_SIZE];
+} sha512_tv_template[] = {
+
+	{ "abc",
+	  { 0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba,
+	    0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31,
+	    0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2,
+	    0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a,
+	    0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
+	    0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd,
+	    0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e,
+	    0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f }
+	},
+	
+	{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	  { 0x20, 0x4a, 0x8f, 0xc6, 0xdd, 0xa8, 0x2f, 0x0a,
+	    0x0c, 0xed, 0x7b, 0xeb, 0x8e, 0x08, 0xa4, 0x16,
+	    0x57, 0xc1, 0x6e, 0xf4, 0x68, 0xb2, 0x28, 0xa8,
+	    0x27, 0x9b, 0xe3, 0x31, 0xa7, 0x03, 0xc3, 0x35,
+	    0x96, 0xfd, 0x15, 0xc1, 0x3b, 0x1b, 0x07, 0xf9,
+	    0xaa, 0x1d, 0x3b, 0xea, 0x57, 0x78, 0x9c, 0xa0,
+	    0x31, 0xad, 0x85, 0xc7, 0xa7, 0x1d, 0xd7, 0x03,
+	    0x54, 0xec, 0x63, 0x12, 0x38, 0xca, 0x34, 0x45 }
+	},
+	
+	{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+	  "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
+	  { 0x8e, 0x95, 0x9b, 0x75, 0xda, 0xe3, 0x13, 0xda,
+	    0x8c, 0xf4, 0xf7, 0x28, 0x14, 0xfc, 0x14, 0x3f,
+	    0x8f, 0x77, 0x79, 0xc6, 0xeb, 0x9f, 0x7f, 0xa1,
+	    0x72, 0x99, 0xae, 0xad, 0xb6, 0x88, 0x90, 0x18,
+	    0x50, 0x1d, 0x28, 0x9e, 0x49, 0x00, 0xf7, 0xe4,
+	    0x33, 0x1b, 0x99, 0xde, 0xc4, 0xb5, 0x43, 0x3a,
+	    0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54,
+	    0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9, 0x09 }
+	},
+	
+	{ "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcd"
+	  "efghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz",
+	  { 0x93, 0x0d, 0x0c, 0xef, 0xcb, 0x30, 0xff, 0x11,
+	    0x33, 0xb6, 0x89, 0x81, 0x21, 0xf1, 0xcf, 0x3d,
+	    0x27, 0x57, 0x8a, 0xfc, 0xaf, 0xe8, 0x67, 0x7c,
+	    0x52, 0x57, 0xcf, 0x06, 0x99, 0x11, 0xf7, 0x5d,
+	    0x8f, 0x58, 0x31, 0xb5, 0x6e, 0xbf, 0xda, 0x67,
+	    0xb2, 0x78, 0xe6, 0x6d, 0xff, 0x8b, 0x84, 0xfe,
+	    0x2b, 0x28, 0x70, 0xf7, 0x42, 0xa5, 0x80, 0xd8,
+	    0xed, 0xb4, 0x19, 0x87, 0x23, 0x28, 0x50, 0xc9
+	  }
+	},
+};
+
 /*
  * DES test vectors.
  */