mirror of
https://github.com/ncruces/go-sqlite3.git
synced 2026-01-12 05:59:14 +00:00
35 lines
681 B
Go
35 lines
681 B
Go
package xts
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import (
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"crypto/aes"
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"crypto/rand"
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"crypto/sha512"
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"golang.org/x/crypto/pbkdf2"
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"golang.org/x/crypto/xts"
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)
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// This variable can be replaced with -ldflags:
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//
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// go build -ldflags="-X github.com/ncruces/go-sqlite3/vfs/xts.pepper=xts"
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var pepper = "github.com/ncruces/go-sqlite3/vfs/xts"
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type aesCreator struct{}
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func (aesCreator) XTS(key []byte) *xts.Cipher {
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c, err := xts.NewCipher(aes.NewCipher, key)
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if err != nil {
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return nil
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}
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return c
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}
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func (aesCreator) KDF(text string) []byte {
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if text == "" {
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key := make([]byte, 32)
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n, _ := rand.Read(key)
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return key[:n]
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}
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return pbkdf2.Key([]byte(text), []byte(pepper), 10_000, 32, sha512.New)
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}
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