67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
/*
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Copyright IBM Corp. 2016 All Rights Reserved.
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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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package bccsp
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import "fmt"
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// SHA256Opts contains options relating to SHA-256.
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type SHA256Opts struct{}
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// Algorithm returns the hash algorithm identifier (to be used).
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func (opts *SHA256Opts) Algorithm() string {
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return SHA256
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}
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// SHA384Opts contains options relating to SHA-384.
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type SHA384Opts struct{}
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// Algorithm returns the hash algorithm identifier (to be used).
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func (opts *SHA384Opts) Algorithm() string {
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return SHA384
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}
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// SHA3_256Opts contains options relating to SHA3-256.
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type SHA3_256Opts struct{}
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// Algorithm returns the hash algorithm identifier (to be used).
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func (opts *SHA3_256Opts) Algorithm() string {
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return SHA3_256
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}
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// SHA3_384Opts contains options relating to SHA3-384.
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type SHA3_384Opts struct{}
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// Algorithm returns the hash algorithm identifier (to be used).
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func (opts *SHA3_384Opts) Algorithm() string {
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return SHA3_384
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}
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// GetHashOpt returns the HashOpts corresponding to the passed hash function
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func GetHashOpt(hashFunction string) (HashOpts, error) {
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switch hashFunction {
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case SHA256:
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return &SHA256Opts{}, nil
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case SHA384:
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return &SHA384Opts{}, nil
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case SHA3_256:
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return &SHA3_256Opts{}, nil
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case SHA3_384:
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return &SHA3_384Opts{}, nil
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}
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return nil, fmt.Errorf("hash function not recognized [%s]", hashFunction)
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}
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