Need to understand a Java and Python cryptography code and make some correction

Greetings sir, i am an expert freelancer for this job and your 100% satisfaction is assured if you allow me to serve. Here is the reason. Why you should pick me? a) I am a very expert and have the same kind of experience of 5 years. b) I work very hard (16+ hours a day and 7 days a week) and also very fast so... it will be done very soon than most of the other providers c) And most important part is my policy: "I will give you (to my client) life time support (as long as you keep relation with me). And fix any bugs/problem without any cost. So, don't ever worry about me” Please sir, leave a reply ASAP, as I am waiting for your kind reply

i have very good experience in python and java programming besides my skills in computer security and cryptography as well

Product Developer (Core JAVA, Hibernate, WebServices ( RESTFul ), AGILE) • 6 years 2 months experience in Product Development & test-suite automation. • Experience in WebService development Core JAVA, Hibernate, and Spring. • ChatBots, Docker, K8S • Involved in complete life cycle of software development. • Worked thoroughly in AGILE methodology. • Exposure to native installation technology (.msi, .rpm). • Knowledge of native UNIX based installers and debugging. • Creating and Publishing Product Hotfix and MR release. • Strong adherence to follow the various processes of software development lifecycle. Technical Skills • Programming Languages – Core JAVA, J2EE, Python Perl, Shell script, VB script, Debugging. • Domain Knowledge – Licensing, Product Development and Installation technology. • Tools & Technologies – Eclipse, IntelliJIdea JBoss AS, Operating Systems Native packaging, QTP. • Other Utilities - InstallAnywhere 6/2011/2012, MKS, Maven, Gradle, Ant, Version Control (SVN Tortoise), Quality Center, ALM, Jenkins/Hudson

what algorithm - eg. PBA_SHA1_WITH_SHA1_HMAC. also symmetric/ asymmetric cryptography (public/private key involved) or RSA????

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Hi, I am working as a JAVA Developer and also student of Information Security in which Studied the Cryptography. Currently i am working on school ERP system. I am interested in your project. Lets Discuss I have vast experience in JAVA. Thanks

Hi, I am a computer science engineer. I studied security and cryptography during my studies and I am also good with analyzing and understanding code. Please feel free to contact me. Regards, Maher

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Dear Sir, I have 9+ years of experience in JAVA and python development. I hereby offer my services to assist you with the cryptography code in as low as $28. Please feel free to contact me through freelancer for further discussion. Thanks & Regards, Abhishek