mirror of
https://github.com/ncruces/go-sqlite3.git
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34 lines
682 B
Go
34 lines
682 B
Go
package adiantum
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import (
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"crypto/rand"
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"golang.org/x/crypto/argon2"
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"lukechampine.com/adiantum"
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"lukechampine.com/adiantum/hbsh"
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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/adiantum.pepper=adiantum"
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var pepper = "github.com/ncruces/go-sqlite3/vfs/adiantum"
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type adiantumCreator struct{}
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func (adiantumCreator) HBSH(key []byte) *hbsh.HBSH {
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if len(key) != 32 {
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return nil
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}
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return adiantum.New(key)
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}
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func (adiantumCreator) KDF(text string) []byte {
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if text == "" {
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key := make([]byte, 32)
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rand.Read(key)
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return key
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}
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return argon2.IDKey([]byte(text), []byte(pepper), 3, 64*1024, 4, 32)
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}
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