Re-add the RSA definitions to BCCSP

bccsp/opts.go

@@ -22,6 +22,19 @@ const (
 	// ECDSAReRand ECDSA key re-randomization
 	ECDSAReRand = "ECDSA_RERAND"
 
+	// RSA at the default security level.
+	// Each BCCSP may or may not support default security level. If not supported than
+	// an error will be returned.
+	RSA = "RSA"
+	// RSA at 1024 bit security level.
+	RSA1024 = "RSA1024"
+	// RSA at 2048 bit security level.
+	RSA2048 = "RSA2048"
+	// RSA at 3072 bit security level.
+	RSA3072 = "RSA3072"
+	// RSA at 4096 bit security level.
+	RSA4096 = "RSA4096"
+
 	// AES Advanced Encryption Standard at the default security level.
 	// Each BCCSP may or may not support default security level. If not supported than
 	// an error will be returned.

bccsp/rsaopts.go

@@ -0,0 +1,70 @@
+/*
+Copyright IBM Corp. All Rights Reserved.
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package bccsp
+
+// RSA1024KeyGenOpts contains options for RSA key generation at 1024 security.
+type RSA1024KeyGenOpts struct {
+	Temporary bool
+}
+
+// Algorithm returns the key generation algorithm identifier (to be used).
+func (opts *RSA1024KeyGenOpts) Algorithm() string {
+	return RSA1024
+}
+
+// Ephemeral returns true if the key to generate has to be ephemeral,
+// false otherwise.
+func (opts *RSA1024KeyGenOpts) Ephemeral() bool {
+	return opts.Temporary
+}
+
+// RSA2048KeyGenOpts contains options for RSA key generation at 2048 security.
+type RSA2048KeyGenOpts struct {
+	Temporary bool
+}
+
+// Algorithm returns the key generation algorithm identifier (to be used).
+func (opts *RSA2048KeyGenOpts) Algorithm() string {
+	return RSA2048
+}
+
+// Ephemeral returns true if the key to generate has to be ephemeral,
+// false otherwise.
+func (opts *RSA2048KeyGenOpts) Ephemeral() bool {
+	return opts.Temporary
+}
+
+// RSA3072KeyGenOpts contains options for RSA key generation at 3072 security.
+type RSA3072KeyGenOpts struct {
+	Temporary bool
+}
+
+// Algorithm returns the key generation algorithm identifier (to be used).
+func (opts *RSA3072KeyGenOpts) Algorithm() string {
+	return RSA3072
+}
+
+// Ephemeral returns true if the key to generate has to be ephemeral,
+// false otherwise.
+func (opts *RSA3072KeyGenOpts) Ephemeral() bool {
+	return opts.Temporary
+}
+
+// RSA4096KeyGenOpts contains options for RSA key generation at 4096 security.
+type RSA4096KeyGenOpts struct {
+	Temporary bool
+}
+
+// Algorithm returns the key generation algorithm identifier (to be used).
+func (opts *RSA4096KeyGenOpts) Algorithm() string {
+	return RSA4096
+}
+
+// Ephemeral returns true if the key to generate has to be ephemeral,
+// false otherwise.
+func (opts *RSA4096KeyGenOpts) Ephemeral() bool {
+	return opts.Temporary
+}