crypto: rmd320 - remove RIPE-MD 320 hash algorithm

RIPE-MD 320 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>

crypto/Kconfig

@@ -834,18 +834,6 @@ config CRYPTO_RMD160
 	  Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 	  See <https://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
 
-config CRYPTO_RMD320
-	tristate "RIPEMD-320 digest algorithm"
-	select CRYPTO_HASH
-	help
-	  RIPEMD-320 is an optional extension of RIPEMD-160 with a
-	  320 bit hash. It is intended for applications that require
-	  longer hash-results, without needing a larger security level
-	  (than RIPEMD-160).
-
-	  Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
-	  See <https://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
-
 config CRYPTO_SHA1
 	tristate "SHA1 digest algorithm"
 	select CRYPTO_HASH

crypto/ripemd.h

@@ -9,20 +9,12 @@
 #define RMD160_DIGEST_SIZE      20
 #define RMD160_BLOCK_SIZE       64
 
-#define RMD320_DIGEST_SIZE      40
-#define RMD320_BLOCK_SIZE       64
-
 /* initial values  */
 #define RMD_H0  0x67452301UL
 #define RMD_H1  0xefcdab89UL
 #define RMD_H2  0x98badcfeUL
 #define RMD_H3  0x10325476UL
 #define RMD_H4  0xc3d2e1f0UL
-#define RMD_H5  0x76543210UL
-#define RMD_H6  0xfedcba98UL
-#define RMD_H7  0x89abcdefUL
-#define RMD_H8  0x01234567UL
-#define RMD_H9  0x3c2d1e0fUL
 
 /* constants */
 #define RMD_K1  0x00000000UL

crypto/tcrypt.c

@@ -71,7 +71,7 @@ static const char *check[] = {
 	"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",
 	"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",
 	"khazad", "wp512", "wp384", "wp256", "tnepres", "xeta",  "fcrypt",
-	"camellia", "seed", "salsa20", "rmd160", "rmd320",
+	"camellia", "seed", "salsa20", "rmd160",
 	"lzo", "lzo-rle", "cts", "sha3-224", "sha3-256", "sha3-384",
 	"sha3-512", "streebog256", "streebog512",
 	NULL
@@ -1871,10 +1871,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		ret += tcrypt_test("rmd160");
 		break;
 
-	case 42:
-		ret += tcrypt_test("rmd320");
-		break;
-
 	case 43:
 		ret += tcrypt_test("ecb(seed)");
 		break;
@@ -2401,10 +2397,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		test_hash_speed("rmd160", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
 		fallthrough;
-	case 317:
-		test_hash_speed("rmd320", sec, generic_hash_speed_template);
-		if (mode > 300 && mode < 400) break;
-		fallthrough;
 	case 318:
 		klen = 16;
 		test_hash_speed("ghash", sec, generic_hash_speed_template);
@@ -2517,10 +2509,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 		test_ahash_speed("rmd160", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
 		fallthrough;
-	case 417:
-		test_ahash_speed("rmd320", sec, generic_hash_speed_template);
-		if (mode > 400 && mode < 500) break;
-		fallthrough;
 	case 418:
 		test_ahash_speed("sha3-224", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;

crypto/testmgr.c

@@ -5275,12 +5275,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 		.suite = {
 			.hash = __VECS(rmd160_tv_template)
 		}
-	}, {
-		.alg = "rmd320",
-		.test = alg_test_hash,
-		.suite = {
-			.hash = __VECS(rmd320_tv_template)
-		}
 	}, {
 		.alg = "rsa",
 		.test = alg_test_akcipher,

crypto/testmgr.h

@@ -3200,70 +3200,6 @@ static const struct hash_testvec rmd160_tv_template[] = {
 	}
 };
 
-/*
- * RIPEMD-320 test vectors
- */
-static const struct hash_testvec rmd320_tv_template[] = {
-	{
-		.digest	= "\x22\xd6\x5d\x56\x61\x53\x6c\xdc\x75\xc1"
-			  "\xfd\xf5\xc6\xde\x7b\x41\xb9\xf2\x73\x25"
-			  "\xeb\xc6\x1e\x85\x57\x17\x7d\x70\x5a\x0e"
-			  "\xc8\x80\x15\x1c\x3a\x32\xa0\x08\x99\xb8",
-	}, {
-		.plaintext = "a",
-		.psize	= 1,
-		.digest	= "\xce\x78\x85\x06\x38\xf9\x26\x58\xa5\xa5"
-			  "\x85\x09\x75\x79\x92\x6d\xda\x66\x7a\x57"
-			  "\x16\x56\x2c\xfc\xf6\xfb\xe7\x7f\x63\x54"
-			  "\x2f\x99\xb0\x47\x05\xd6\x97\x0d\xff\x5d",
-	}, {
-		.plaintext = "abc",
-		.psize	= 3,
-		.digest	= "\xde\x4c\x01\xb3\x05\x4f\x89\x30\xa7\x9d"
-			  "\x09\xae\x73\x8e\x92\x30\x1e\x5a\x17\x08"
-			  "\x5b\xef\xfd\xc1\xb8\xd1\x16\x71\x3e\x74"
-			  "\xf8\x2f\xa9\x42\xd6\x4c\xdb\xc4\x68\x2d",
-	}, {
-		.plaintext = "message digest",
-		.psize	= 14,
-		.digest	= "\x3a\x8e\x28\x50\x2e\xd4\x5d\x42\x2f\x68"
-			  "\x84\x4f\x9d\xd3\x16\xe7\xb9\x85\x33\xfa"
-			  "\x3f\x2a\x91\xd2\x9f\x84\xd4\x25\xc8\x8d"
-			  "\x6b\x4e\xff\x72\x7d\xf6\x6a\x7c\x01\x97",
-	}, {
-		.plaintext = "abcdefghijklmnopqrstuvwxyz",
-		.psize	= 26,
-		.digest	= "\xca\xbd\xb1\x81\x0b\x92\x47\x0a\x20\x93"
-			  "\xaa\x6b\xce\x05\x95\x2c\x28\x34\x8c\xf4"
-			  "\x3f\xf6\x08\x41\x97\x51\x66\xbb\x40\xed"
-			  "\x23\x40\x04\xb8\x82\x44\x63\xe6\xb0\x09",
-	}, {
-		.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcde"
-			     "fghijklmnopqrstuvwxyz0123456789",
-		.psize	= 62,
-		.digest	= "\xed\x54\x49\x40\xc8\x6d\x67\xf2\x50\xd2"
-			  "\x32\xc3\x0b\x7b\x3e\x57\x70\xe0\xc6\x0c"
-			  "\x8c\xb9\xa4\xca\xfe\x3b\x11\x38\x8a\xf9"
-			  "\x92\x0e\x1b\x99\x23\x0b\x84\x3c\x86\xa4",
-	}, {
-		.plaintext = "1234567890123456789012345678901234567890"
-			     "1234567890123456789012345678901234567890",
-		.psize	= 80,
-		.digest	= "\x55\x78\x88\xaf\x5f\x6d\x8e\xd6\x2a\xb6"
-			  "\x69\x45\xc6\xd2\xa0\xa4\x7e\xcd\x53\x41"
-			  "\xe9\x15\xeb\x8f\xea\x1d\x05\x24\x95\x5f"
-			  "\x82\x5d\xc7\x17\xe4\xa0\x08\xab\x2d\x42",
-	}, {
-		.plaintext = "abcdbcdecdefdefgefghfghighij"
-			     "hijkijkljklmklmnlmnomnopnopq",
-		.psize	= 56,
-		.digest	= "\xd0\x34\xa7\x95\x0c\xf7\x22\x02\x1b\xa4"
-			  "\xb8\x4d\xf7\x69\xa5\xde\x20\x60\xe2\x59"
-			  "\xdf\x4c\x9b\xb4\xa4\x26\x8c\x0e\x93\x5b"
-			  "\xbc\x74\x70\xa9\x69\xc9\xd0\x72\xa1\xac",
-	}
-};
-
 static const struct hash_testvec crct10dif_tv_template[] = {
 	{
 		.plaintext	= "abc",