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keytype.go
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keytype.go
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/*
* Copyright (C) 2015-2018 Virgil Security Inc.
*
* Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* (1) Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* (2) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* (3) Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
package crypto
import (
"github.com/VirgilSecurity/virgil-sdk-go/v6/crypto/wrapper/foundation"
)
type KeyType int
// nolint: golint
const (
DefaultKeyType KeyType = iota
RSA_2048
RSA_3072
RSA_4096
RSA_8192
EC_SECP256R1
EC_SECP384R1
EC_SECP521R1
EC_BP256R1
EC_BP384R1
EC_BP512R1
EC_SECP256K1
EC_CURVE25519
FAST_EC_X25519
FAST_EC_ED25519
CURVE25519_ED25519
CURVE25519Round5_ED25519Falcon
)
type keyGen interface {
GeneratePrivateKey(kp *foundation.KeyProvider) (foundation.PrivateKey, error)
}
var keyTypeMap = map[KeyType]keyGen{
DefaultKeyType: keyType(foundation.AlgIdEd25519),
RSA_2048: rsaKeyType(2048),
RSA_3072: rsaKeyType(3072),
RSA_4096: rsaKeyType(4096),
RSA_8192: rsaKeyType(8192),
EC_SECP256R1: keyType(foundation.AlgIdSecp256r1),
EC_CURVE25519: keyType(foundation.AlgIdCurve25519),
FAST_EC_ED25519: keyType(foundation.AlgIdEd25519),
CURVE25519_ED25519: &compoundHybridKeyType{
cipherFirstKeyAlgId: foundation.AlgIdCurve25519,
cipherSecondKeyAlgId: foundation.AlgIdNone,
signerFirstKeyAlgId: foundation.AlgIdEd25519,
signerSecondKeyAlgId: foundation.AlgIdNone,
},
CURVE25519Round5_ED25519Falcon: &compoundHybridKeyType{
cipherFirstKeyAlgId: foundation.AlgIdCurve25519,
cipherSecondKeyAlgId: foundation.AlgIdRound5Nd5kem5d,
signerFirstKeyAlgId: foundation.AlgIdEd25519,
signerSecondKeyAlgId: foundation.AlgIdFalcon,
},
}
type keyType foundation.AlgId
func (t keyType) GeneratePrivateKey(kp *foundation.KeyProvider) (foundation.PrivateKey, error) {
return kp.GeneratePrivateKey(foundation.AlgId(t))
}
type rsaKeyType int
func (t rsaKeyType) GeneratePrivateKey(kp *foundation.KeyProvider) (foundation.PrivateKey, error) {
kp.SetRsaParams(uint(t))
return kp.GeneratePrivateKey(foundation.AlgIdRsa)
}
type compoundHybridKeyType struct {
cipherFirstKeyAlgId foundation.AlgId
cipherSecondKeyAlgId foundation.AlgId
signerFirstKeyAlgId foundation.AlgId
signerSecondKeyAlgId foundation.AlgId
}
func (t *compoundHybridKeyType) GeneratePrivateKey(kp *foundation.KeyProvider) (foundation.PrivateKey, error) {
return kp.GenerateCompoundHybridPrivateKey(
t.cipherFirstKeyAlgId,
t.cipherSecondKeyAlgId,
t.signerFirstKeyAlgId,
t.signerSecondKeyAlgId,
)
}