egutierrez
bd9383fd82
12 funciones puras con implementación real: HashSHA256, HashMD5, EntropyShannon, IsBase64, IsHex, ExtractURLs, ParseIPCIDR, IPInRange, NormalizeURL, DetectSQLInjection, LevenshteinDistance, JaccardSimilarity 4 funciones impuras con implementación real (stdlib): LookupWhois, ResolveDNS, FetchHTTPHeaders, ScanPortTCP Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
16 lines
415 B
Go
16 lines
415 B
Go
package cybersecurity
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// IsHex verifica si el string proporcionado es una cadena hexadecimal valida.
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// Requiere longitud par y que todos los caracteres sean digitos hex (0-9, a-f, A-F).
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func IsHex(s string) bool {
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if len(s) == 0 || len(s)%2 != 0 {
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return false
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}
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for _, c := range s {
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if !((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
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return false
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}
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}
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return true
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}
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