going somewhere

asymetric/rsaOaepEncrypter_test.go

@@ -0,0 +1,60 @@
+package asymetric
+
+import (
+	_ "crypto/sha512"
+
+	"crypto"
+	"crypto/rsa"
+	"testing"
+)
+
+func TestRsaOaepEncrypt(t *testing.T) {
+	bobPrivKey, bobPubKey := generateKeyPair()
+
+	r := &RsaOaepEncrypter{nil, bobPubKey, crypto.SHA384, random}
+
+	ciphertext, err := r.Encrypt([]byte("this is a secret message"))
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	orgTest, err := rsa.DecryptOAEP(crypto.SHA384.New(), random, bobPrivKey, ciphertext, []byte{})
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if string(orgTest) != "this is a secret message" {
+		t.Error("the decryption of the message does not fit the original message")
+	}
+}
+
+func TestRsaOaepEncryptDecrypt(t *testing.T) {
+	bobPrivKey, bobPubKey := generateKeyPair()
+
+	message := "this is a secret message"
+
+	rAlice := &RsaOaepEncrypter{nil, bobPubKey, crypto.SHA384, random}
+	rBob := &RsaOaepEncrypter{bobPrivKey, nil, crypto.SHA384, random}
+
+	if ciphertext, err := rAlice.Encrypt([]byte(message)); err != nil {
+		t.Error(err)
+		return
+	} else if decryptedText, err := rBob.Decrypt(ciphertext); err != nil {
+		t.Error(err)
+	} else if string(decryptedText) != message {
+		t.Error("the decryption of the message does not fit the original message")
+	}
+}
+
+func TestRsaOaepAvailableHashes(t *testing.T) {
+	hashes := map[crypto.Hash]bool{crypto.SHA224: true, crypto.SHA256: true, crypto.SHA384: true, crypto.SHA512: true}
+	var i crypto.Hash
+	for i = 0; i < 22; i++ {
+		r := &RsaOaepEncrypter{Hash: i}
+		if _, err := r.getHash(); err != nil && hashes[i] {
+			t.Error("should support", i, "hash type but does not")
+		} else if err == nil && !hashes[i] {
+			t.Error("should not support", i, "hash type but does")
+		}
+	}
+}