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22 lines
725 B
Go
22 lines
725 B
Go
package wrappers
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import (
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"golang.org/x/crypto/argon2"
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)
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const (
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// parameters for Argon2
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argonTime = 8 // set to pass 1-second test in dev environment
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argonMemory = 384 * 1024 // 384 MB (target running comfortably on a Pi Zero/512 MB RAM)
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argonThreads = 32 // must use a static thread count for support across multiple devices
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// general constants
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keyLen = 32 // 256 bits, key length for both algorithms
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saltSize = 16 // 128 bits, recommended salt size for both algorithms
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)
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// deriveKey derives an encryption key from a passphrase using Argon2.
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func deriveKey(passphrase []byte, salt []byte) []byte {
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return argon2.IDKey(passphrase, salt, argonTime, argonMemory, argonThreads, keyLen)
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}
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