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  • LPC18S and LPC43S

    Encryption library hardware acceleration
    LPC18S & LPC43S

    The LPC18Sxx and LPC43Sxx microcontrollers provide an AES-128 hardware accelerator.

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    SEGGER emSSH

    The SEGGER encryption library has specialized hardware-assisted ciphering support

    The following cryptographic algorithms using the LPC18S and LPC43S:

    • AES-128 in ECB and CBC modes.

    All other AES-128 cipher modes (e.g. AES-GCM and AES-CCM) use hardware-assisted ciphering of individual blocks with software managing the cipher mode.

    CipherModeSoftware PerformanceHardware PerformanceSpeedup
    AES-128-ECBEncrypt2.38 MB/s3.07 MB/sx1.3
    AES-128-CBCEncrypt2.00 MB/s22.44 MB/sx11.2
    AES-128-ECBDecrypt2.46 MB/s3.10 MB/sx1.3
    AES-128-CBCDecrypt1.97 MB/s22.19 MB/sx11.3
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