Tata Consultancy Services
Asst System Engineer | PKI Analyst
July 2019 - Dec 2020
Worked as a Asst Systems Engineer under the Cyber Security Domain. PKI Technology was the main focus of work. learned working with windows servers, Managing the public key infrastructure of a big scale organisation. Trained in cryptography and cyber security tools for a month.
Key Responsibilities
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Implementation of PKI setup (Root CA, Issuing CA, OCSP, AIA, CDP)
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Issuing the manually enrolled digital certificates (SSL/TLS, Code Signing)
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Troubleshooting the issues related to auto-enrolled certificates (User smartcard log-on, EFS, Client Authentication)
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Monitoring the CRL publication and taking necessary actions to keep CRL up to date.
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Managing Thales nCipher HSM for private key management in the enterprise PKI.
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Creating and publishing new certificate templates based on the requirement.
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Taking ownership of all issues related to PKI infrastructure.
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Performing health check of PKI servers and service to ensure availability.
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I am having good knowledge on encoding, hashing and cryptographic algorithms (Base64, SHA1, SHA256, RSA)
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Preparing guidance documents for creating CSR, installing certificates and binding with IIS.
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worked on migrating PKI setup from Windows 8 to Windows 16 servers.
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Automated certificate revocation using batch scripting.
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Created a batch file to issue bulk certificates at a time.