crypto: tgr192 - remove Tiger 128/160/192 hash algorithms

Tiger is never referenced anywhere in the kernel, and unlikely to be depended upon by userspace via AF_ALG. So let's remove it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Dark-Matter7232 · Jan 29, 2021 · 87cd723 · 87cd723
1 parent 93f6420
commit 87cd723
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diff --git a/crypto/Kconfig b/crypto/Kconfig
@@ -1009,19 +1009,6 @@ config CRYPTO_STREEBOG
 	  https://tc26.ru/upload/iblock/fed/feddbb4d26b685903faa2ba11aea43f6.pdf
 	  https://tools.ietf.org/html/rfc6986
 
-config CRYPTO_TGR192
-	tristate "Tiger digest algorithms"
-	select CRYPTO_HASH
-	help
-	  Tiger hash algorithm 192, 160 and 128-bit hashes
-
-	  Tiger is a hash function optimized for 64-bit processors while
-	  still having decent performance on 32-bit processors.
-	  Tiger was developed by Ross Anderson and Eli Biham.
-
-	  See also:
-	  <https://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
-
 config CRYPTO_WP512
 	tristate "Whirlpool digest algorithms"
 	select CRYPTO_HASH

diff --git a/crypto/Makefile b/crypto/Makefile
@@ -77,7 +77,6 @@ obj-$(CONFIG_CRYPTO_SM3) += sm3_generic.o
 obj-$(CONFIG_CRYPTO_STREEBOG) += streebog_generic.o
 obj-$(CONFIG_CRYPTO_WP512) += wp512.o
 CFLAGS_wp512.o := $(call cc-option,-fno-schedule-insns)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
-obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
 obj-$(CONFIG_CRYPTO_BLAKE2B) += blake2b_generic.o
 obj-$(CONFIG_CRYPTO_BLAKE2S) += blake2s_generic.o
 obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
@@ -1815,18 +1815,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		ret += tcrypt_test("cbc(anubis)");
 		break;
 
-	case 27:
-		ret += tcrypt_test("tgr192");
-		break;
-
-	case 28:
-		ret += tcrypt_test("tgr160");
-		break;
-
-	case 29:
-		ret += tcrypt_test("tgr128");
-		break;
-
 	case 30:
 		ret += tcrypt_test("ecb(xeta)");
 		break;
@@ -2377,18 +2365,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		test_hash_speed("wp512", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
 		fallthrough;
-	case 310:
-		test_hash_speed("tgr128", sec, generic_hash_speed_template);
-		if (mode > 300 && mode < 400) break;
-		fallthrough;
-	case 311:
-		test_hash_speed("tgr160", sec, generic_hash_speed_template);
-		if (mode > 300 && mode < 400) break;
-		fallthrough;
-	case 312:
-		test_hash_speed("tgr192", sec, generic_hash_speed_template);
-		if (mode > 300 && mode < 400) break;
-		fallthrough;
 	case 313:
 		test_hash_speed("sha224", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
@@ -2489,18 +2465,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		test_ahash_speed("wp512", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
 		fallthrough;
-	case 410:
-		test_ahash_speed("tgr128", sec, generic_hash_speed_template);
-		if (mode > 400 && mode < 500) break;
-		fallthrough;
-	case 411:
-		test_ahash_speed("tgr160", sec, generic_hash_speed_template);
-		if (mode > 400 && mode < 500) break;
-		fallthrough;
-	case 412:
-		test_ahash_speed("tgr192", sec, generic_hash_speed_template);
-		if (mode > 400 && mode < 500) break;
-		fallthrough;
 	case 413:
 		test_ahash_speed("sha224", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
@@ -5375,24 +5375,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 		.suite = {
 			.hash = __VECS(streebog512_tv_template)
 		}
-	}, {
-		.alg = "tgr128",
-		.test = alg_test_hash,
-		.suite = {
-			.hash = __VECS(tgr128_tv_template)
-		}
-	}, {
-		.alg = "tgr160",
-		.test = alg_test_hash,
-		.suite = {
-			.hash = __VECS(tgr160_tv_template)
-		}
-	}, {
-		.alg = "tgr192",
-		.test = alg_test_hash,
-		.suite = {
-			.hash = __VECS(tgr192_tv_template)
-		}
 	}, {
 		.alg = "vmac64(aes)",
 		.test = alg_test_hash,

diff --git a/crypto/testmgr.h b/crypto/testmgr.h
@@ -4950,132 +4950,6 @@ static const struct hash_testvec wp256_tv_template[] = {
 	},
 };
 
-/*
- * TIGER test vectors from Tiger website
- */
-static const struct hash_testvec tgr192_tv_template[] = {
-	{
-		.plaintext = "",
-		.psize	= 0,
-		.digest = "\x24\xf0\x13\x0c\x63\xac\x93\x32"
-			  "\x16\x16\x6e\x76\xb1\xbb\x92\x5f"
-			  "\xf3\x73\xde\x2d\x49\x58\x4e\x7a",
-	}, {
-		.plaintext = "abc",
-		.psize	= 3,
-		.digest = "\xf2\x58\xc1\xe8\x84\x14\xab\x2a"
-			  "\x52\x7a\xb5\x41\xff\xc5\xb8\xbf"
-			  "\x93\x5f\x7b\x95\x1c\x13\x29\x51",
-	}, {
-		.plaintext = "Tiger",
-		.psize	= 5,
-		.digest = "\x9f\x00\xf5\x99\x07\x23\x00\xdd"
-			  "\x27\x6a\xbb\x38\xc8\xeb\x6d\xec"
-			  "\x37\x79\x0c\x11\x6f\x9d\x2b\xdf",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-",
-		.psize	= 64,
-		.digest = "\x87\xfb\x2a\x90\x83\x85\x1c\xf7"
-			  "\x47\x0d\x2c\xf8\x10\xe6\xdf\x9e"
-			  "\xb5\x86\x44\x50\x34\xa5\xa3\x86",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZ=abcdefghijklmnopqrstuvwxyz+0123456789",
-		.psize	= 64,
-		.digest = "\x46\x7d\xb8\x08\x63\xeb\xce\x48"
-			  "\x8d\xf1\xcd\x12\x61\x65\x5d\xe9"
-			  "\x57\x89\x65\x65\x97\x5f\x91\x97",
-	}, {
-		.plaintext = "Tiger - A Fast New Hash Function, "
-			   "by Ross Anderson and Eli Biham, "
-			   "proceedings of Fast Software Encryption 3, "
-			   "Cambridge, 1996.",
-		.psize  = 125,
-		.digest = "\x3d\x9a\xeb\x03\xd1\xbd\x1a\x63"
-			  "\x57\xb2\x77\x4d\xfd\x6d\x5b\x24"
-			  "\xdd\x68\x15\x1d\x50\x39\x74\xfc",
-	},
-};
-
-static const struct hash_testvec tgr160_tv_template[] = {
-	{
-		.plaintext = "",
-		.psize	= 0,
-		.digest = "\x24\xf0\x13\x0c\x63\xac\x93\x32"
-			  "\x16\x16\x6e\x76\xb1\xbb\x92\x5f"
-			  "\xf3\x73\xde\x2d",
-	}, {
-		.plaintext = "abc",
-		.psize	= 3,
-		.digest = "\xf2\x58\xc1\xe8\x84\x14\xab\x2a"
-			  "\x52\x7a\xb5\x41\xff\xc5\xb8\xbf"
-			  "\x93\x5f\x7b\x95",
-	}, {
-		.plaintext = "Tiger",
-		.psize	= 5,
-		.digest = "\x9f\x00\xf5\x99\x07\x23\x00\xdd"
-			  "\x27\x6a\xbb\x38\xc8\xeb\x6d\xec"
-			  "\x37\x79\x0c\x11",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-",
-		.psize	= 64,
-		.digest = "\x87\xfb\x2a\x90\x83\x85\x1c\xf7"
-			  "\x47\x0d\x2c\xf8\x10\xe6\xdf\x9e"
-			  "\xb5\x86\x44\x50",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZ=abcdefghijklmnopqrstuvwxyz+0123456789",
-		.psize	= 64,
-		.digest = "\x46\x7d\xb8\x08\x63\xeb\xce\x48"
-			  "\x8d\xf1\xcd\x12\x61\x65\x5d\xe9"
-			  "\x57\x89\x65\x65",
-	}, {
-		.plaintext = "Tiger - A Fast New Hash Function, "
-			   "by Ross Anderson and Eli Biham, "
-			   "proceedings of Fast Software Encryption 3, "
-			   "Cambridge, 1996.",
-		.psize  = 125,
-		.digest = "\x3d\x9a\xeb\x03\xd1\xbd\x1a\x63"
-			  "\x57\xb2\x77\x4d\xfd\x6d\x5b\x24"
-			  "\xdd\x68\x15\x1d",
-	},
-};
-
-static const struct hash_testvec tgr128_tv_template[] = {
-	{
-		.plaintext = "",
-		.psize	= 0,
-		.digest = "\x24\xf0\x13\x0c\x63\xac\x93\x32"
-			  "\x16\x16\x6e\x76\xb1\xbb\x92\x5f",
-	}, {
-		.plaintext = "abc",
-		.psize	= 3,
-		.digest = "\xf2\x58\xc1\xe8\x84\x14\xab\x2a"
-			  "\x52\x7a\xb5\x41\xff\xc5\xb8\xbf",
-	}, {
-		.plaintext = "Tiger",
-		.psize	= 5,
-		.digest = "\x9f\x00\xf5\x99\x07\x23\x00\xdd"
-			  "\x27\x6a\xbb\x38\xc8\xeb\x6d\xec",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-",
-		.psize	= 64,
-		.digest = "\x87\xfb\x2a\x90\x83\x85\x1c\xf7"
-			  "\x47\x0d\x2c\xf8\x10\xe6\xdf\x9e",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZ=abcdefghijklmnopqrstuvwxyz+0123456789",
-		.psize	= 64,
-		.digest = "\x46\x7d\xb8\x08\x63\xeb\xce\x48"
-			  "\x8d\xf1\xcd\x12\x61\x65\x5d\xe9",
-	}, {
-		.plaintext = "Tiger - A Fast New Hash Function, "
-			   "by Ross Anderson and Eli Biham, "
-			   "proceedings of Fast Software Encryption 3, "
-			   "Cambridge, 1996.",
-		.psize  = 125,
-		.digest = "\x3d\x9a\xeb\x03\xd1\xbd\x1a\x63"
-			  "\x57\xb2\x77\x4d\xfd\x6d\x5b\x24",
-	},
-};
-
 static const struct hash_testvec ghash_tv_template[] =
 {
 	{