def pre(self):
self.k = self.declare(LLVMArrayType(uint8_t, 32))
self.n = self.declare(LLVMArrayType(uint8_t, 16))
self.k_p = self.declare_pointer(LLVMArrayType(uint8_t, 32))
self.n_p = self.declare_pointer(LLVMArrayType(uint8_t, 16))
self.ks_p = self.declare_pointer(LLVMArrayType(uint8_t, 64))
self.points_to(self.k_p, self.k)
self.points_to(self.n_p, self.n)
def specification(self):
(k, k_p) = ptr_to_fresh(self, LLVMArrayType(i8, 32))
(v, v_p) = ptr_to_fresh(self, LLVMArrayType(i8, 8))
(m, m_p) = ptr_to_fresh(self, LLVMArrayType(i8, self.size))
self.execute_func(k_p, v_p, cryptol('0 : [32]'), m_p,
cryptol(f'{self.size!r} : [32]'))
self.returns(cryptol('0 : [32]'))
self.points_to(m_p, cryptol("Salsa20_encrypt")((k, v, m)))
def specification(self):
k = self.fresh_var(LLVMArrayType(i8, 32))
n = self.fresh_var(LLVMArrayType(i8, 16))
k_p = self.alloc(LLVMArrayType(i8, 32))
n_p = self.alloc(LLVMArrayType(i8, 16))
ks_p = self.alloc(LLVMArrayType(i8, 64))
self.points_to(k_p, k)
self.points_to(n_p, n)
self.execute_func(k_p, n_p, ks_p)
self.returns(void)
self.points_to(ks_p, cryptol("Salsa20_expansion`{a=2}")((k, n)))
def __init__(self):
super().__init__(LLVMArrayType(uint32_t, 16))
def pre(self):
(self.k, self.k_p) = self.val_and_pointer(LLVMArrayType(uint8_t, 32))
(self.v, self.v_p) = self.val_and_pointer(LLVMArrayType(uint8_t, 8))
(self.m, self.m_p) = self.val_and_pointer(LLVMArrayType(uint8_t, self.size))
def __init__(self):
super().__init__(LLVMArrayType(uint8_t, 64))
def specification(self) -> None:
oneptr_update_func(self, LLVMArrayType(i8, 64), "Salsa20")
def specification(self) -> None:
oneptr_update_func(self, LLVMArrayType(i32, 16), "doubleround")