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allow nil additional data generator

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This commit is contained in:
Darien Raymond 2017-11-26 16:55:35 +01:00
parent 4b990c49bc
commit 981c43afc2
No known key found for this signature in database
GPG Key ID: 7251FFA14BB18169
1 changed files with 8 additions and 2 deletions
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10
common/crypto/auth.go
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@ -68,7 +68,10 @@ func (v *AEADAuthenticator) Open(dst, cipherText []byte) ([]byte, error) {
return nil, newError("invalid AEAD nonce size: ", len(iv))
}
additionalData := v.AdditionalDataGenerator.Next()
var additionalData []byte
if v.AdditionalDataGenerator != nil {
additionalData = v.AdditionalDataGenerator.Next()
}
return v.AEAD.Open(dst, iv, cipherText, additionalData)
}
@ -78,7 +81,10 @@ func (v *AEADAuthenticator) Seal(dst, plainText []byte) ([]byte, error) {
return nil, newError("invalid AEAD nonce size: ", len(iv))
}
additionalData := v.AdditionalDataGenerator.Next()
var additionalData []byte
if v.AdditionalDataGenerator != nil {
additionalData = v.AdditionalDataGenerator.Next()
}
return v.AEAD.Seal(dst, iv, plainText, additionalData), nil
}