mirror of https://github.com/dapr/kit.git
81 lines
3.2 KiB
Go
81 lines
3.2 KiB
Go
/*
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Copyright 2022 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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//nolint:nosnakecase
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package crypto
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import (
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"crypto"
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"github.com/lestrrat-go/jwx/v2/jwk"
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)
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// Encrypt a message using the given algorithm and key, supporting both symmetric and asymmetric ciphers.
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func Encrypt(plaintext []byte, algorithm string, key jwk.Key, nonce []byte, associatedData []byte) (ciphertext []byte, tag []byte, err error) {
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// Note that this includes all constants defined in consts.go, but some algorithms are not supported (yet)
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switch algorithm {
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case Algorithm_A128CBC, Algorithm_A192CBC, Algorithm_A256CBC,
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Algorithm_A128GCM, Algorithm_A192GCM, Algorithm_A256GCM,
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Algorithm_A128CBC_HS256, Algorithm_A192CBC_HS384, Algorithm_A256CBC_HS512,
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Algorithm_A128KW, Algorithm_A192KW, Algorithm_A256KW,
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Algorithm_A128GCMKW, Algorithm_A192GCMKW, Algorithm_A256GCMKW,
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Algorithm_C20P, Algorithm_XC20P, Algorithm_C20PKW, Algorithm_XC20PKW:
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return EncryptSymmetric(plaintext, algorithm, key, nonce, associatedData)
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case Algorithm_ECDH_ES,
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Algorithm_ECDH_ES_A128KW, Algorithm_ECDH_ES_A192KW, Algorithm_ECDH_ES_A256KW,
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Algorithm_RSA1_5,
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Algorithm_RSA_OAEP, Algorithm_RSA_OAEP_256, Algorithm_RSA_OAEP_384, Algorithm_RSA_OAEP_512:
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ciphertext, err = EncryptPublicKey(plaintext, algorithm, key, associatedData)
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return
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default:
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return nil, nil, ErrUnsupportedAlgorithm
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}
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}
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// Decrypt a message using the given algorithm and key, supporting both symmetric and asymmetric ciphers.
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func Decrypt(ciphertext []byte, algorithm string, key jwk.Key, nonce []byte, tag []byte, associatedData []byte) (plaintext []byte, err error) {
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// Note that this includes all constants defined in consts.go, but some algorithms are not supported (yet)
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switch algorithm {
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case Algorithm_A128CBC, Algorithm_A192CBC, Algorithm_A256CBC,
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Algorithm_A128GCM, Algorithm_A192GCM, Algorithm_A256GCM,
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Algorithm_A128CBC_HS256, Algorithm_A192CBC_HS384, Algorithm_A256CBC_HS512,
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Algorithm_A128KW, Algorithm_A192KW, Algorithm_A256KW,
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Algorithm_A128GCMKW, Algorithm_A192GCMKW, Algorithm_A256GCMKW,
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Algorithm_C20P, Algorithm_XC20P, Algorithm_C20PKW, Algorithm_XC20PKW:
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return DecryptSymmetric(ciphertext, algorithm, key, nonce, tag, associatedData)
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case Algorithm_ECDH_ES,
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Algorithm_ECDH_ES_A128KW, Algorithm_ECDH_ES_A192KW, Algorithm_ECDH_ES_A256KW,
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Algorithm_RSA1_5,
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Algorithm_RSA_OAEP, Algorithm_RSA_OAEP_256, Algorithm_RSA_OAEP_384, Algorithm_RSA_OAEP_512:
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return DecryptPrivateKey(ciphertext, algorithm, key, associatedData)
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default:
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return nil, ErrUnsupportedAlgorithm
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}
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}
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func getSHAHash(alg string) crypto.Hash {
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switch alg[len(alg)-3:] {
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case "256":
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return crypto.SHA256
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case "384":
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return crypto.SHA384
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case "512":
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return crypto.SHA512
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}
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return crypto.Hash(0)
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}
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