@interface DESSignatureKey : NSObject { struct __SecKey { struct __CFRuntimeBase { unsigned long long x0; _Atomic unsigned long long x1; } x0; struct __SecKeyDescriptor *x1; void *x2; } *_key; } + (id)keyFromData:(id)a0; + (struct __SecKey { struct __CFRuntimeBase { unsigned long long x0; _Atomic unsigned long long x1; } x0; struct __SecKeyDescriptor *x1; void *x2; } *)keyFromCertificateChain:(id)a0; - (id)init; - (void)dealloc; - (BOOL)validateBase64Signature:(id)a0 data:(id)a1; - (id)initWithKey:(struct __SecKey { struct __CFRuntimeBase { unsigned long long x0; _Atomic unsigned long long x1; } x0; struct __SecKeyDescriptor *x1; void *x2; } *)a0; - (BOOL)validateBase64Signature:(id)a0 data:(id)a1 algorithm:(struct __CFString { } *)a2; - (BOOL)validateSignature:(id)a0 data:(id)a1 algorithm:(struct __CFString { } *)a2; @end