59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
package randomx
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import "golang.org/x/crypto/blake2b"
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import (
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_ "golang.org/x/crypto/argon2"
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_ "unsafe"
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)
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// see reference configuration.h
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// Cache size in KiB. Must be a power of 2.
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const RANDOMX_ARGON_MEMORY = 262144
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// Number of Argon2d iterations for Cache initialization.
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const RANDOMX_ARGON_ITERATIONS = 3
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// Number of parallel lanes for Cache initialization.
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const RANDOMX_ARGON_LANES = 1
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// Argon2d salt
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const RANDOMX_ARGON_SALT = "RandomX\x03"
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const ArgonSaltSize uint32 = 8 //sizeof("" RANDOMX_ARGON_SALT) - 1
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const ArgonBlockSize uint32 = 1024
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type argonBlock [128]uint64
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const syncPoints = 4
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//go:linkname argon2_initHash golang.org/x/crypto/argon2.initHash
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func argon2_initHash(password, salt, key, data []byte, time, memory, threads, keyLen uint32, mode int) [blake2b.Size + 8]byte
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//go:linkname argon2_initBlocks golang.org/x/crypto/argon2.initBlocks
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func argon2_initBlocks(h0 *[blake2b.Size + 8]byte, memory, threads uint32) []argonBlock
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//go:linkname argon2_processBlocks golang.org/x/crypto/argon2.processBlocks
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func argon2_processBlocks(B []argonBlock, time, memory, threads uint32, mode int)
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// argon2_buildBlocks From golang.org/x/crypto/argon2.deriveKey without last deriveKey call
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func argon2_buildBlocks(password, salt, secret, data []byte, time, memory uint32, threads uint8, keyLen uint32) []argonBlock {
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if time < 1 {
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panic("argon2: number of rounds too small")
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}
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if threads < 1 {
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panic("argon2: parallelism degree too low")
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}
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const mode = 0 /* argon2d */
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h0 := argon2_initHash(password, salt, secret, data, time, memory, uint32(threads), keyLen, mode)
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memory = memory / (syncPoints * uint32(threads)) * (syncPoints * uint32(threads))
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if memory < 2*syncPoints*uint32(threads) {
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memory = 2 * syncPoints * uint32(threads)
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}
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B := argon2_initBlocks(&h0, memory, uint32(threads))
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argon2_processBlocks(B, time, memory, uint32(threads), mode)
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return B
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}
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