46 lines
1018 B
Go
46 lines
1018 B
Go
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package main
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import (
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"fmt"
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"unsafe"
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"github.com/goplus/llgo/c"
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"github.com/goplus/llgo/c/openssl"
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)
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func main() {
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str := "Hello, World!"
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key := "123456"
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var lenKey = len(key)
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var digest = make([]byte, openssl.EVP_MAX_MD_SIZE)
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var digestLen c.Uint
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ctx := openssl.NewHMAC_CTX()
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if ctx == nil {
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c.Fprintf(c.Stderr, c.Str("%s\n"), c.Str("Error creating HMAC_CTX"))
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return
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}
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defer ctx.Free()
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var ret c.Int = ctx.InitEx(unsafe.Pointer(unsafe.StringData(key)), c.Int(lenKey), openssl.EVP_sha256(), nil)
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if ret == 0 {
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c.Fprintf(c.Stderr, c.Str("%s\n"), c.Str("Error initializing HMAC_CTX"))
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return
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}
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ret = ctx.UpdateString(str)
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if ret == 0 {
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c.Fprintf(c.Stderr, c.Str("%s\n"), c.Str("Error updating HMAC_CTX"))
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return
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}
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ret = ctx.Final(unsafe.SliceData(digest), &digestLen)
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if ret == 0 {
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c.Fprintf(c.Stderr, c.Str("%s\n"), c.Str("Error finalizing HMAC_CTX"))
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return
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}
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fmt.Print("HMAC: ")
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for i := 0; i < int(digestLen); i++ {
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fmt.Printf("%02x", digest[i])
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}
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fmt.Print("\n")
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}
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