TMCA - TM Certificate Authorities  TMCA Building Trust & Confidence ™

TMCA will continue to serve the nation throughout the Movement Control Order.

TMCA would like to assure that it will continue to serve the nation during the two-week "restriction of movement" order beginning 18 March 2020.

We recognize the daily challenge that our customers may face during this period and staying connected has become even more crucial at this moment.

Hence, we are here, committed to continue our service and support to keep you connected so that you can be constantly informed.

We understand that there's limited movement allowed during this period, we would like to encourage all our customers to use channels below for support.

Business Contact:


SSL Enquiries:


Technical Support Contact:

Support Email:





Helping you to secure your
online business

We provide organization with secure business
solutions that protect its information assets,
manage security threats and ensure secure
business transactions.

Do You Know?

What is encryption in cryptography?

What is encryption in cryptography?

In cryptography, encryption is the process of transforming information (referred to as plaintext) using an algorithm (called a cipher) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information (in cryptography, referred to as ciphertext). In many contexts, the word encryption also implicitly refers to the reverse process, decryption (e.g. "software for encryption" can typically also perform decryption), to make the encrypted information readable again (i.e. to make it unencrypted).