Added some hash validation (#875)

README.md

@@ -190,6 +190,16 @@ Baked-in Validations
 | uuid5 | Universally Unique Identifier UUID v5 |
 | uuid5_rfc4122 | Universally Unique Identifier UUID v5 RFC4122 |
 | uuid_rfc4122 | Universally Unique Identifier UUID RFC4122 |
+| md4 | MD4 hash |
+| md5 | MD5 hash |
+| sha256 | SHA256 hash |
+| sha384 | SHA384 hash |
+| sha512 | SHA512 hash |
+| ripemd128 | RIPEMD-128 hash |
+| ripemd128 | RIPEMD-160 hash |
+| tiger128 | TIGER128 hash |
+| tiger160 | TIGER160 hash |
+| tiger192 | TIGER192 hash |
 | semver | Semantic Versioning 2.0.0 |
 | ulid | Universally Unique Lexicographically Sortable Identifier ULID |
 

baked_in.go

@@ -151,6 +151,16 @@ var (
 		"uuid4_rfc4122":                 isUUID4RFC4122,
 		"uuid5_rfc4122":                 isUUID5RFC4122,
 		"ulid":                          isULID,
+		"md4":                           isMD4,
+		"md5":                           isMD5,
+		"sha256":                        isSHA256,
+		"sha384":                        isSHA384,
+		"sha512":                        isSHA512,
+		"ripemd128":                     isRIPEMD128,
+		"ripemd160":                     isRIPEMD160,
+		"tiger128":                      isTIGER128,
+		"tiger160":                      isTIGER160,
+		"tiger192":                      isTIGER192,
 		"ascii":                         isASCII,
 		"printascii":                    isPrintableASCII,
 		"multibyte":                     hasMultiByteCharacter,
@@ -500,6 +510,56 @@ func isULID(fl FieldLevel) bool {
 	return uLIDRegex.MatchString(fl.Field().String())
 }
 
+// isMD4 is the validation function for validating if the field's value is a valid MD4.
+func isMD4(fl FieldLevel) bool {
+	return md4Regex.MatchString(fl.Field().String())
+}
+
+// isMD5 is the validation function for validating if the field's value is a valid MD5.
+func isMD5(fl FieldLevel) bool {
+	return md5Regex.MatchString(fl.Field().String())
+}
+
+// isSHA256 is the validation function for validating if the field's value is a valid SHA256.
+func isSHA256(fl FieldLevel) bool {
+	return sha256Regex.MatchString(fl.Field().String())
+}
+
+// isSHA384 is the validation function for validating if the field's value is a valid SHA384.
+func isSHA384(fl FieldLevel) bool {
+	return sha384Regex.MatchString(fl.Field().String())
+}
+
+// isSHA512 is the validation function for validating if the field's value is a valid SHA512.
+func isSHA512(fl FieldLevel) bool {
+	return sha512Regex.MatchString(fl.Field().String())
+}
+
+// isRIPEMD128 is the validation function for validating if the field's value is a valid PIPEMD128.
+func isRIPEMD128(fl FieldLevel) bool {
+	return ripemd128Regex.MatchString(fl.Field().String())
+}
+
+// isRIPEMD160 is the validation function for validating if the field's value is a valid PIPEMD160.
+func isRIPEMD160(fl FieldLevel) bool {
+	return ripemd160Regex.MatchString(fl.Field().String())
+}
+
+// isTIGER128 is the validation function for validating if the field's value is a valid TIGER128.
+func isTIGER128(fl FieldLevel) bool {
+	return tiger128Regex.MatchString(fl.Field().String())
+}
+
+// isTIGER160 is the validation function for validating if the field's value is a valid TIGER160.
+func isTIGER160(fl FieldLevel) bool {
+	return tiger160Regex.MatchString(fl.Field().String())
+}
+
+// isTIGER192 is the validation function for validating if the field's value is a valid isTIGER192.
+func isTIGER192(fl FieldLevel) bool {
+	return tiger192Regex.MatchString(fl.Field().String())
+}
+
 // isISBN is the validation function for validating if the field's value is a valid v10 or v13 ISBN.
 func isISBN(fl FieldLevel) bool {
 	return isISBN10(fl) || isISBN13(fl)

regexes.go

@@ -30,6 +30,16 @@ const (
 	uUID5RFC4122RegexString          = "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-5[0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$"
 	uUIDRFC4122RegexString           = "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$"
 	uLIDRegexString                  = "^[A-HJKMNP-TV-Z0-9]{26}$"
+	md4RegexString                   = "^[0-9a-f]{32}$"
+	md5RegexString                   = "^[0-9a-f]{32}$"
+	sha256RegexString                = "^[0-9a-f]{64}$"
+	sha384RegexString                = "^[0-9a-f]{96}$"
+	sha512RegexString                = "^[0-9a-f]{128}$"
+	ripemd128RegexString             = "^[0-9a-f]{32}$"
+	ripemd160RegexString             = "^[0-9a-f]{40}$"
+	tiger128RegexString              = "^[0-9a-f]{32}$"
+	tiger160RegexString              = "^[0-9a-f]{40}$"
+	tiger192RegexString              = "^[0-9a-f]{48}$"
 	aSCIIRegexString                 = "^[\x00-\x7F]*$"
 	printableASCIIRegexString        = "^[\x20-\x7E]*$"
 	multibyteRegexString             = "[^\x00-\x7F]"
@@ -84,6 +94,16 @@ var (
 	uUID5RFC4122Regex          = regexp.MustCompile(uUID5RFC4122RegexString)
 	uUIDRFC4122Regex           = regexp.MustCompile(uUIDRFC4122RegexString)
 	uLIDRegex                  = regexp.MustCompile(uLIDRegexString)
+	md4Regex                   = regexp.MustCompile(md4RegexString)
+	md5Regex                   = regexp.MustCompile(md5RegexString)
+	sha256Regex                = regexp.MustCompile(sha256RegexString)
+	sha384Regex                = regexp.MustCompile(sha384RegexString)
+	sha512Regex                = regexp.MustCompile(sha512RegexString)
+	ripemd128Regex             = regexp.MustCompile(ripemd128RegexString)
+	ripemd160Regex             = regexp.MustCompile(ripemd160RegexString)
+	tiger128Regex              = regexp.MustCompile(tiger128RegexString)
+	tiger160Regex              = regexp.MustCompile(tiger160RegexString)
+	tiger192Regex              = regexp.MustCompile(tiger192RegexString)
 	aSCIIRegex                 = regexp.MustCompile(aSCIIRegexString)
 	printableASCIIRegex        = regexp.MustCompile(printableASCIIRegexString)
 	multibyteRegex             = regexp.MustCompile(multibyteRegexString)