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v2022-12-24.1800-optimize
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v2022-12-24.1800-optimize; optimized all hashing functions, tweaked buffer size
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@cyclone-github
cyclone-github authored Dec 25, 2022
1 parent d53e5c2 commit ef8a91b
Showing 1 changed file with 36 additions and 27 deletions.
63 changes: 36 additions & 27 deletions hashgen.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"crypto/sha512"
"encoding/base64"
"encoding/binary"
"encoding/hex"
"unicode/utf16"
"flag"
"fmt"
Expand Down Expand Up @@ -36,16 +37,17 @@ import (
// v2022-12-20.1430-goroutine; complete rewrite using goroutines & read/write buffers
// v2022-12-21.1400-goroutine; added multiple new algo's including hashcat mode equivalents
// v2022-12-23.1200-goroutine; added argon2id (very slow), added sync / wait group for future use, change h/s readout from millions to thousands,
// v2022-12-24.1800-optimize; optimized all hashing functions, tweaked buffer size

// TODO:
// continue to add more hash functions
// add "-o stdout" flag to print hashes to stdout
// optimize hash functions for better performance (ex: ntlm is currently slower than md5)
// continue optimizing hash functions for better performance (ex: ntlm is currently slower than md5)
// fine tune goroutines for better performance with read --> hash function --> write
// add feature to allow hash cracking in addition to hash generation (future program: hashgenie)

func versionFunc() {
funcBase64Decode("Q3ljbG9uZSBoYXNoIGdlbmVyYXRvciB2MjAyMi0xMi0yMy4xMjAwLWdvcm91dGluZQo=")
funcBase64Decode("Q3ljbG9uZSBoYXNoIGdlbmVyYXRvciB2MjAyMi0xMi0yNC4xODAwLW9wdGltaXplCg==")
}

// help function
Expand Down Expand Up @@ -82,7 +84,7 @@ func helpFunc() {
"sha3-512 \t 17400\n"
fmt.Println(str)
os.Exit(0)
}
}

// main function
func main() {
Expand Down Expand Up @@ -201,18 +203,25 @@ func main() {
}

// create read / write buffers
// input buffer
inputBuffer := bufio.NewScanner(input)
outputBuffer := bufio.NewWriter(output)
// set buffer capacity to 10mb
const maxCapacity = 10*1024*1024
buf := make([]byte, maxCapacity)
inputBuffer.Buffer(buf, maxCapacity)
// set output buffer to 100mb
outputBuffer := bufio.NewWriterSize(output, 100*1024*1024)

// create buffered channels to receive lines <-- not currently emplimented
//lines := make(chan string, 1024)
//linesHash := make(chan string, 1024)
//lines := make(chan string, 10*1024*1024)
//linesHash := make(chan string, 10*1024*1024)

// create WaitGroup to wait for goroutines to finish
var wg sync.WaitGroup

// create goroutine bool channel
done := make(chan bool)
// start hashgen goroutine
wg.Add(1)
go func() {
defer wg.Done()
Expand All @@ -226,12 +235,12 @@ func main() {
for inputBuffer.Scan() {
line := inputBuffer.Text()
pwd := []byte(line)
hash, err := bcrypt.GenerateFromPassword(pwd, bcrypt.MinCost ) // <-- cost can be adjusted here
hash, err := bcrypt.GenerateFromPassword(pwd, bcrypt.MinCost) // <-- cost can be adjusted here
if err != nil {
log.Println(err)
}
hashString := string(hash)
outputBuffer.WriteString(fmt.Sprintf("%v\n", hashString))
outputBuffer.WriteString(string(hashString) + "\n")
linesHashed++
}
} else if hashFunc == "argon2id" {
Expand All @@ -250,7 +259,7 @@ func main() {
log.Fatal(err)
}
// Print argon2id hash
outputBuffer.WriteString(fmt.Sprintf("%v\n", hash))
outputBuffer.WriteString(string(hash) + "\n")
linesHashed++
}
} else if hashFunc == "blake2b-256" {
Expand All @@ -261,7 +270,7 @@ func main() {
hash, _ := blake2b.New256(nil)
hash.Write(lineByte)
hashValue := hash.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hashValue))
outputBuffer.WriteString(hex.EncodeToString(hashValue) + "\n")
linesHashed++
}
} else if hashFunc == "blake2b-384" {
Expand All @@ -272,7 +281,7 @@ func main() {
hash, _ := blake2b.New384(nil)
hash.Write(lineByte)
hashValue := hash.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hashValue))
outputBuffer.WriteString(hex.EncodeToString(hashValue) + "\n")
linesHashed++
}
} else if hashFunc == "blake2b-512" {
Expand All @@ -283,7 +292,7 @@ func main() {
hash, _ := blake2b.New512(nil)
hash.Write(lineByte)
hashValue := hash.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hashValue))
outputBuffer.WriteString(hex.EncodeToString(hashValue) + "\n")
linesHashed++
}
} else if hashFunc == "blake2s-256" {
Expand All @@ -294,7 +303,7 @@ func main() {
hash, _ := blake2s.New256(nil)
hash.Write(lineByte)
hashValue := hash.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hashValue))
outputBuffer.WriteString(hex.EncodeToString(hashValue) + "\n")
linesHashed++
}
} else if hashFunc == "crc32" {
Expand All @@ -303,7 +312,7 @@ func main() {
line := inputBuffer.Text()
h := crc32.ChecksumIEEE([]byte(line))
hash := strconv.FormatUint(uint64(h), 16)
outputBuffer.WriteString(fmt.Sprintf("%v\n", hash))
outputBuffer.WriteString(string(hash) + "\n")
linesHashed++
}
} else if hashFunc == "crc64" {
Expand All @@ -313,15 +322,16 @@ func main() {
password := []byte(line)
table := crc64.MakeTable(crc64.ECMA)
hash := crc64.Checksum(password, table)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hash))
hashString := strconv.FormatUint(hash, 16)
outputBuffer.WriteString(hashString + "\n")
linesHashed++
}
}
} else if hashFunc == "base64encode" {
// base64encode
for inputBuffer.Scan() {
line := inputBuffer.Text()
str := base64.StdEncoding.EncodeToString([]byte(line))
outputBuffer.WriteString(fmt.Sprintf("%v\n", str))
outputBuffer.WriteString(string(str) + "\n")
linesHashed++
}
} else if hashFunc == "base64decode" {
Expand All @@ -331,9 +341,9 @@ func main() {
str, err := base64.StdEncoding.DecodeString(line)
if err != nil {
fmt.Println("--> Text doesn't appear to be base64 encoded. <--")
//os.Exit(0) // <-- uncomment this line to stop on error or leave commented to skip non-base64 lines and continue
os.Exit(0) // <-- uncomment this line to stop on error or leave commented to skip non-base64 lines and continue
}
outputBuffer.WriteString(fmt.Sprintf("%s\n", str))
outputBuffer.WriteString(string(str) + "\n")
linesHashed++
}
} else if hashFunc == "ntlm" {
Expand All @@ -345,31 +355,30 @@ func main() {
if err := binary.Write(hash, binary.LittleEndian, input); err != nil {
panic(fmt.Errorf("--> Failed NTLM hashing: %w <--", err))
}
outputHash := hash.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%X\n", outputHash))
outputBuffer.WriteString(hex.EncodeToString(hash.Sum(nil)) + "\n")
linesHashed++
}
} else if hashFunc == "plaintext" {
// print plaintext
for inputBuffer.Scan() {
line := inputBuffer.Text()
outputBuffer.WriteString(fmt.Sprintf("%v\n", line))
outputBuffer.WriteString(string(line) + "\n")
linesHashed++
}
} else if hashFunc == "sha2-224" {
// sha224 hash function
// sha2_224 hash function
for inputBuffer.Scan() {
line := inputBuffer.Text()
hash := sha256.Sum224([]byte(line))
outputBuffer.WriteString(fmt.Sprintf("%x\n", hash))
outputBuffer.WriteString(hex.EncodeToString(hash[:]) + "\n")
linesHashed++
}
} else if hashFunc == "sha2-384" {
// sha384 hash function
// sha2_384 hash function
for inputBuffer.Scan() {
line := inputBuffer.Text()
hash := sha512.Sum384([]byte(line))
outputBuffer.WriteString(fmt.Sprintf("%x\n", hash))
outputBuffer.WriteString(hex.EncodeToString(hash[:]) + "\n")
linesHashed++
}
} else { // other hash functions defined in switch
Expand All @@ -378,7 +387,7 @@ func main() {
h.Reset()
h.Write([]byte(line))
hash := h.Sum(nil)
outputBuffer.WriteString(fmt.Sprintf("%x\n", hash))
outputBuffer.WriteString(hex.EncodeToString(hash) + "\n")
linesHashed++
}
}
Expand Down

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