#import <Foundation/Foundation.h>
#import <CoreFoundation/CoreFoundation.h>
#import <Security/Security.h>
@interface PSUtilities : NSObject
+ (NSString*)digestAndEncode:(CFDataRef)cfData useSHA1:(BOOL)useSHA1;
+ (CFDataRef)readFile:(NSString *)file_path;
+ (SecCertificateRef)getCertificateFromData:(CFDataRef)data;
+ (CFDataRef)getKeyDataFromCertificate:(SecCertificateRef)cert;
+ (SecKeyRef)getPrivateKeyWithName:(NSString *)keyName;
+ (NSString *)signAndEncode:(CFDataRef)data usingKey:(SecKeyRef)key useSHA1:(BOOL)useSHA1;
@end