hanez/fun
1
0
Fork 0
forked from fun/fun
Code Pull requests Activity

Added sha256_str to class sha256.fun + a demo and some .editorconfig update. (0.12.1)

Browse source
This commit is contained in:
Johannes Findeisen 2025-09-29 09:11:18 +02:00
commit 348db0bead
4 changed files with 101 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

58
lib/crypt/sha256.fun
View file

@ -259,3 +259,61 @@ class SHA256()
bytes = this.from_hex(hexStr)
digest = this.sha256_bytes(bytes)
return this.bytes_to_hex(digest)
// Convert a printable ASCII string (0x20..0x7E) to byte array
fun string_to_bytes_ascii(this, s)
str = to_string(s)
out = []
number i = 0
// ASCII printable ranges
P1 = " !\"#$%&'()*+,-./" // 32..47
P2 = "0123456789" // 48..57
P3 = ":;<=>?@" // 58..64
P4 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" // 65..90
P5 = "[\\]^_`" // 91..96
P6 = "abcdefghijklmnopqrstuvwxyz" // 97..122
P7 = "{|}~" // 123..126
while true
ch = substr(str, i, 1)
if (typeof(ch) != "String" || ch == "")
break
number code = -1
idx = find(P1, ch)
if (idx >= 0)
code = 32 + idx
else
idx = find(P2, ch)
if (idx >= 0)
code = 48 + idx
else
idx = find(P3, ch)
if (idx >= 0)
code = 58 + idx
else
idx = find(P4, ch)
if (idx >= 0)
code = 65 + idx
else
idx = find(P5, ch)
if (idx >= 0)
code = 91 + idx
else
idx = find(P6, ch)
if (idx >= 0)
code = 97 + idx
else
idx = find(P7, ch)
if (idx >= 0)
code = 123 + idx
else
// non-printable -> 0
code = 0
push(out, code)
i = i + 1
return out
// Hash raw string bytes (printable ASCII). Example: sha512_str("616263") -> ee2109...
fun sha256_str(this, str)
bytes = this.string_to_bytes_ascii(str)
digest = this.sha256_bytes(bytes)
return this.bytes_to_hex(digest)