Looking for a cheap microcontroller with cryptography

Question

Do it yourself

If you know cheap microcontrollers with hardware cryptography and low power consumption, please share the models.

The microcontroller should eat as little as possible, have as strong cryptography as possible and at the same time be cheap - all compromise options are considered.

Variants of cryptographic coprocessors (also eating as little as possible and cheap) are also considered.

Answer 1

STM32F215

Answer 2

Googled C8051F967-A-GM . Supports AES 256, prices per piece are around $4-7.

Answer 3

NXP also supports AES in both hardware and software.

Answer 4

NRF24LE1, it has a radio interface even before a heap of 2.4GHz