Source file src/github.com/miekg/pkcs11/p11/secret_key.go

Documentation: github.com/miekg/pkcs11/p11

     1  package p11
     2  
     3  import "github.com/miekg/pkcs11"
     4  
     5  // SecretKey is an Object representing a secret (symmetric) key. Since any object can be cast to a
     6  // SecretKey, it is the user's responsibility to ensure that the object is
     7  // actually a secret key. For instance, if you use a FindObjects template that
     8  // includes CKA_CLASS: CKO_SECRET_KEY, you can be confident the resulting object
     9  // is a secret key.
    10  type SecretKey Object
    11  
    12  // Encrypt encrypts a plaintext with a given mechanism.
    13  func (secret SecretKey) Encrypt(mechanism pkcs11.Mechanism, plaintext []byte) ([]byte, error) {
    14  	s := secret.session
    15  	s.Lock()
    16  	defer s.Unlock()
    17  	err := s.ctx.EncryptInit(s.handle, []*pkcs11.Mechanism{&mechanism}, secret.objectHandle)
    18  	if err != nil {
    19  		return nil, err
    20  	}
    21  	out, err := s.ctx.Encrypt(s.handle, plaintext)
    22  	if err != nil {
    23  		return nil, err
    24  	}
    25  	return out, nil
    26  }
    27  
    28  // Decrypt decrypts the input with a given mechanism.
    29  func (secret SecretKey) Decrypt(mechanism pkcs11.Mechanism, ciphertext []byte) ([]byte, error) {
    30  	s := secret.session
    31  	s.Lock()
    32  	defer s.Unlock()
    33  	err := s.ctx.DecryptInit(s.handle, []*pkcs11.Mechanism{&mechanism}, secret.objectHandle)
    34  	if err != nil {
    35  		return nil, err
    36  	}
    37  	out, err := s.ctx.Decrypt(s.handle, ciphertext)
    38  	if err != nil {
    39  		return nil, err
    40  	}
    41  	return out, nil
    42  }
    43  

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