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Diffstat (limited to 'utils/README.md')
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1 files changed, 11 insertions, 6 deletions
diff --git a/utils/README.md b/utils/README.md index 29c5abc..61204c6 100644 --- a/utils/README.md +++ b/utils/README.md @@ -1,7 +1,8 @@ # Utilities Here are a couple of useful utilities built on top of the library. -Each of the utilities accepts the `--help` flag, which can be used to examine utility's usage info. +Each of the utilities accepts the `--help` flag, which can be used to examine +utility's usage info. The included utilities are: @@ -9,13 +10,15 @@ The included utilities are: * [file encryption](#file-encryption) utilities, * and [bitmap encryption](#bitmap-encryption) utilities. -On older CPUs, you can run the utilities [using Intel SDE](../README.md#running-on-older-cpus). +On older CPUs, you can run the utilities +[using Intel SDE](../README.md#running-on-older-cpus). ## Block encryption ### aes_encrypt_block.exe -Encrypts 16-byte blocks using AES-128/192/256 in the specified mode of operation. +Encrypts 16-byte blocks using AES-128/192/256 in the specified mode of +operation. #### Usage examples @@ -42,7 +45,8 @@ run: ### aes_decrypt_block.exe -Decrypts 16-byte blocks using AES-128/192/256 in the specified mode of operation. +Decrypts 16-byte blocks using AES-128/192/256 in the specified mode of +operation. #### Usage examples @@ -125,8 +129,9 @@ run ## Bitmap encryption -These utilities were developed primarily to demonstrate the drawbacks of using ECB mode -(namely, the fact that identical plaintext blocks get mapped to identical ciphertext blocks). +These utilities were developed primarily to demonstrate the drawbacks of using +ECB mode (namely, the fact that identical plaintext blocks get mapped to +identical ciphertext blocks). This can be explicitly shown using 8-bit-per-pixel bitmaps: Plaintext BMP | Encrypted in ECB mode | Encrypted in CBC mode |