httpsig/httpsig.go at master · spacemonkeygo/httpsig · GitHub

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// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

package httpsig

// Algorithm provides methods used to sign/verify signatures.

type Algorithm interface {

Name() string

Sign(key interface{}, data []byte) (sig []byte, err error)

Verify(key interface{}, data, sig []byte) error

}

// KeyGetter is an interface used by the verifier to retrieve a key stored

// by key id.

// The following types are supported for the specified algorithms:

// []byte - HMAC signatures

// *rsa.PublicKey - RSA signatures

// *rsa.PrivateKey - RSA signatures

// Other types will treated as if no key was returned.

type KeyGetter interface {

GetKey(id string) interface{}

}

// KeyGetterFunc is a convenience type for implementing a KeyGetter with a

// regular function

type KeyGetterFunc func(id string) interface{}

// GetKey calls fn(id)

func (fn KeyGetterFunc) GetKey(id string) interface{} {

return fn(id)

}

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