Accept legacy hyphenated SHA-1/256/512 algorithm names

Author: vkalapov

util/digest.go

@@ -21,13 +21,13 @@ func ComputeFileChecksum(filePath, algorithm string) (string, error) {
 	switch strings.ToUpper(algorithm) {
 	case "MD5":
 		hasher = md5.New()
-	case "SHA1":
+	case "SHA1", "SHA-1":
 		hasher = sha1.New()
-	case "SHA256":
+	case "SHA256", "SHA-256":
 		hasher = sha256.New()
 	case "SHA384", "SHA-384":
 		hasher = sha512.New384()
-	case "SHA512":
+	case "SHA512", "SHA-512":
 		hasher = sha512.New()
 	case "SHA3-256":
 		hasher = sha3.New256()

util/digest_test.go

@@ -55,6 +55,33 @@ var _ = Describe("Digest", func() {
 			})
 		})
 
+		Context("with legacy hyphenated SHA-256 algorithm name", func() {
+			It("should compute the SHA-256 digest of the file", func() {
+				const testFileContent = "test file content"
+				os.WriteFile(testFile.Name(), []byte(testFileContent), 0644)
+				digest, err := util.ComputeFileChecksum(testFilePath, "SHA-256")
+				testutil.ExpectNoErrorAndResult(err, digest, "60f5237ed4049f0382661ef009d2bc42e48c3ceb3edb6600f7024e7ab3b838f3")
+			})
+		})
+
+		Context("with legacy hyphenated SHA-1 algorithm name", func() {
+			It("should compute the SHA-1 digest of the file", func() {
+				const testFileContent = "test file content"
+				os.WriteFile(testFile.Name(), []byte(testFileContent), 0644)
+				digest, err := util.ComputeFileChecksum(testFilePath, "SHA-1")
+				testutil.ExpectNoErrorAndResult(err, digest, "9032bbc224ed8b39183cb93b9a7447727ce67f9d")
+			})
+		})
+
+		Context("with legacy hyphenated SHA-512 algorithm name", func() {
+			It("should compute the SHA-512 digest of the file", func() {
+				const testFileContent = "test file content"
+				os.WriteFile(testFile.Name(), []byte(testFileContent), 0644)
+				digest, err := util.ComputeFileChecksum(testFilePath, "SHA-512")
+				testutil.ExpectNoErrorAndResult(err, digest, "6543084c6981d2d3e44d295d20adee4e5fa3fc1bb2b7d3ac80ca456b0141dfd75657ba40ea5ae398824b3a871c8b7762c8bdbcbc252fa7f358d33d90ee455d86")
+			})
+		})
+
 		Context("with SHA3-256 algorithm", func() {
 			It("should compute the SHA3-256 digest of the file", func() {
 				const testFileContent = "test file content"