Fix #44 -- Thanks @HacKanCuBa!

paragonie-security · paragonie-security · commit d6e1d5d0fb24 · 2022-06-10T20:43:46.000-04:00
diff --git a/src/Base32.php b/src/Base32.php
@@ -197,7 +197,7 @@ public static function decodeNoPadding(string $encodedString, bool $upper = fals
         }
         if (($srcLen & 7) === 0) {
             for ($j = 0; $j < 7; ++$j) {
-                if ($encodedString[$srcLen - 1] === '=') {
+                if ($encodedString[$srcLen - $j] === '=') {
                     throw new InvalidArgumentException(
                         "decodeNoPadding() doesn't tolerate padding"
                     );

Original file line number	Diff line number	Diff line change
`@@ -197,7 +197,7 @@ public static function decodeNoPadding(string $encodedString, bool $upper = fals`
`197`	`197`	`}`
`198`	`198`	`if (($srcLen & 7) === 0) {`
`199`	`199`	`for ($j = 0; $j < 7; ++$j) {`
`200`		`- if ($encodedString[$srcLen - 1] === '=') {`
	`200`	`+ if ($encodedString[$srcLen - $j] === '=') {`
`201`	`201`	`throw new InvalidArgumentException(`
`202`	`202`	`"decodeNoPadding() doesn't tolerate padding"`
`203`	`203`	`);`