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Android Apps > Tools > AES Message Encryptor for SMS
AES Message Encryptor for SMS icon

AES Message Encryptor for SMS

1.0.14
Maninder Gill
4.33
149 reviews
10,000+
Downloads
Free

Encrypt text/SMS/email with Advanced Encryption Standard(AES) with 256 bit Key .

This app is currently not available on Google Play.

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About AES Message Encryptor for SMS

AES Message Encryptor for SMS was a tools app developed by Maninder Gill. It was removed from Google Play Sep 3, 2024 and is no longer available for download.

Download Statistics

AES Message Encryptor for SMS had been downloaded 25 thousand times before it became unavailable.

User Ratings

AES Message Encryptor for SMS was rated 4.33 out of 5 stars, based on 150 ratings.

App Information

AES Message Encryptor for SMS was free to download. The APK download size was 82.17 kB. The last available version was 1.0.14. The last update was on July 26, 2024.

Technical Requirements

AES Message Encryptor for SMS required Android 3.2+ or higher. The app had a content rating of Everyone. The app had been available on Google Play February 2014.

Description
This app can be used for encrypting your message text , SMS or email content using Advanced Encryption Standard (AES) with 256 bit key. It can encrypt/ decrypt messages using AES. This app DOES NOT REQUIRE ANY PERMISSIONS and is COMPLETELY FREE OF ADVERTISEMENTS. You can be sure that the app does what it promises . The crack resistitvity of an AES depends on the password length and complexity. The app warns if the user does not selects a password with min 6 characters having atleast one uppercase letter, one lower case, one special character and one digit.

Text Encryptor is a Text Encryption application that allows you to protect your privacy while communicating with friends. It allows you to encrypt/decrypt text messages using Advance Encryption Standard(AES) with a 256 bit (key length).

The system computes the 256 bit key from the password string using SHA-256. The system uses Cipher Block Chaining method (CBC) to encrypt the message in blocks of 128 bits. Block cipher modes for symmetric-key encryption algorithms require plain text input that is a multiple of the block size (ie 128 bits for AES), so messages may have to be padded to bring them to this length. The padding being used is PKCS5Padding. In CBC Explicit Initialization Vectors technique is being used wherein we prepend a single random block to the plaintext. Encryption is done as normal, except the IV does not need to be communicated to the decryption routine. Whatever IV decryption uses, only the random block is "corrupted". This block is discarded and the rest of the decryption is the original plaintext.

Electronic Codebook(ECB) block cipher method option has also been given. In ECB the message is divided into blocks, and each block is encrypted separately.The disadvantage of this method is that identical plaintext blocks are encrypted into identical ciphertext blocks; thus, it must not be used with a non-random and repetitive data. The ECB mode is deterministic. ECB option is only for academic purpose.

Test Mode. AES test values (taken from FIPS-197) are:
Key: 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
Plaintext: 00112233445566778899aabbccddeeff
Ciphertext: 8ea2b7ca516745bfeafc49904b496089
Encrypting the plaintext with the key should give the ciphertext, decrypting the ciphertext with the key should give the plaintext.

You can test the encryption online by using the test values at
http://extranet.cryptomathic.com/aescalc/index
To test select the mode as ECB on the website and use the above test values. To test for anyother value of Key and data , ensure that the data is exactly 16 Hex (16x8=128 bits) characters long. The key should be 32 Hex characters (32x8=256 bits) long. The mode selected in the android application should be "Testing with No Padding". You would observe that the result matches exactly.

You can check SHA-256 conversion of the password online at
http://www.xorbin.com/tools/sha256-hash-calculator

Incase of any issues, feel free to write to me at
manindersinghgill@gmail.com

PS
Some good links to learn cryptography process being used in the app are as under
AES
https://www.youtube.com/watch?v=nL1ApwEXrz0
https://www.youtube.com/watch?v=ayiOhApI6SM

Block Ciphers, Why not use ECB?
https://www.youtube.com/watch?v=t0pREiDO7_g
https://en.wikipedia.org/wiki/Block_cipher

UTF-8
https://www.youtube.com/watch?v=vLBtrd9Ar28

Recent changes:
To comply with requirements upgraded target SDK to API level 34
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More data about AES Message Encryptor for SMS

Price Free to download
Total downloads 25 thousand
Rating 4.33 based on 150 ratings
Version 1.0.14
APK size 82.2 KB
Number of libraries 0
Designed for Android 3.2+
Suitable for Everyone
Ads NO ads

App Performance Report

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Get PDF Report — $29

Google Play Rating history and histogram

110
6
6
6
12

Downloads over time

AES Message Encryptor for SMS has been downloaded 25 thousand times.

Changelog of AES Message Encryptor for SMS

Show changelog

Developer information for Maninder Gill

Maninder Gill

Website

Legal name:

Address:

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Comments on AES Message Encryptor for SMS for Android

★★★★★ This app is simple and easy to use. It doesn't have a lot of options and settings to worry about, just put in the password you want to use and start encrypting and decrypting messages. If you like being able to change settings and use different ciphers, this app might not be for you. If you want simple and easy to use, this app is perfect.
★★☆☆☆ Yeah, is called RCS last time I checked, and I just had to enable it. So why do I need this app? So another hand goes into the cookie jar? Yeah, No.
★★☆☆☆ Cannot use!!!!! It does not decrypt my message...ive troubles in password pls help!
★★☆☆☆ There are literally 0 instructions on usage. I have absolutely no idea how to use this app :(
★★☆☆☆ Does not allow you to use short keys.duh.waste my time encrypting messages from a website and sending it to my friend.

Technologies used by AES Message Encryptor for SMS

AES Message Encryptor for SMS is requesting 0 permissions and is using 0 libraries.
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