25 lines
747 B
Go
25 lines
747 B
Go
// +build !go1.5
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// = go 1.4 or lower
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package cryptocore
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import (
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"crypto/cipher"
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"fmt"
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"github.com/rfjakob/gocryptfs/internal/tlog"
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)
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// goGCMWrapper - This wrapper makes sure gocryptfs can be compiled on Go
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// versions 1.4 and lower that lack NewGCMWithNonceSize().
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// 128 bit GCM IVs will not work when using built-in Go crypto, obviously, when
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// compiled on 1.4.
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func goGCMWrapper(bc cipher.Block, nonceSize int) (cipher.AEAD, error) {
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if nonceSize != 12 {
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tlog.Warn.Printf("128 bit GCM IVs are not supported by Go 1.4 and lower.")
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tlog.Warn.Printf("Please use openssl crypto or recompile using a newer Go runtime.")
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return nil, fmt.Errorf("128 bit GCM IVs are not supported by Go 1.4 and lower")
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}
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return cipher.NewGCM(bc)
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}
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