19 #import <Foundation/Foundation.h>
21 NS_ASSUME_NONNULL_BEGIN
30 - (instancetype)init NS_UNAVAILABLE;
38 + (NSString *)encodeBase64urlNoPadding:(NSData *)data;
45 + (nullable NSString *)randomURLSafeStringWithSize:(NSUInteger)size;
51 + (NSData *)sha256:(NSString *)inputString;
57 + (nullable NSString *)redact:(nullable NSString *)inputString;
63 + (NSString*)formUrlEncode:(NSString*)inputString;