#Fields marked with an * are mandatory. Before filling out the form below, please follow the instructions. By using this service, you agree to the Terms Of Use.
#Private DCCL key: *
#Your name: *
#File title: *
#File description: (up to 250 chars)
#Your customer ID: *
#To complete the task, select the file that represents the digital asset you want to sign.
#This service values your privacy and aims to guarantee the credibility of the way your content is collected, processed, stored or shared.
#Fields marked with an * are mandatory.
#Public DCCL key: *
#To complete the task, select the file whose digital signature you want to verify.
#This service values your privacy and aims to guarantee the credibility of the way your content is collected, processed, stored or shared.
#To digitally sign a file using the DCCL algorithm, be sure to take the following steps:
1
Generate a crypto key pair consisting of a public DCCL key and a private DCCL key.
The key pair is responsible for digitally signing the file and verifying the digital signature.
It takes a minute or two to complete the process and it's free.
2
Prepare the file you want to digitally sign. You can choose a file of any size, which can be an image, audio, video, animated GIF or PDF.
Available file types are .jpg, .jpeg, .png, .tiff, .ico, .wav, .mp3, .m4a, .wma, .aac, .3gpp, .3gp, .mp4, .mpg, .mpeg, .mkv, .avi, .wmv, .mov, .m4v, .gif and .pdf.
3
Apply for a customer ID by making a purchase via PayPal (or another service of your choice). You will receive the customer ID after completing the payment.
The customer ID serves as proof of purchase and must not be shared publicly. Please save this code for future reference.
4
That's all it takes to get started. Now you can go back to adding a digital signature to your file.
If you have any questions or issues, feel free to send us a message.
#Introduction
Presume we have a locker with two electronic locks.
One lock is used to close the locker and the other is used to open it. The locks are controlled by numeric keypads and locker codes.
Although generated by different algorithms, these codes are complementary. They come in pairs and are thoroughly intertwined.
Let's put a file (image, audio, video, text document, etc.) into that locker and see if we can find a way to prevent it from being tampered with, altered, or replaced.
#What does it mean to digitally sign a document?
After placing the file in the locker, we will close it with the appropriate electronic lock. The code for this lock is private and only known to the file owner.
As noted above, the file in the locker is expected to preserve its authenticity and the integrity of the data it is composed of. Attached to the document are our personal data, which we also want to remain unalterable.
This procedure is called digital signing and represents the preservation of the authenticity of documents and related data, with the possibility of their later verification under certain conditions.
Once digitally signed, the file and attached metadata can no longer be forged or modified.
#What does it mean to verify a digital signature?
If someone wants to open the locker and view the document, they must use the other lock and the corresponding code. This code is publicly available to anyone who opens the locker and examines its contents.
Mathematically speaking, this is the process of verifying a digital signature and confirming the authenticity of the signed file and associated data.
We will know exactly if the file is signed, who signed it and when it was signed.
The locker is designed in such a way that if someone tries to pick the locks, the files inside are automatically deleted.
It is unlikely that anyone could ever come up with a solution to fool the system or make it vulnerable to cyber attacks.
#What is Digital Chip Card Locker?
The code for the first electronic lock, which is used to lock the locker, is called the private DCCL key, while the code for the second electronic lock, which is used to unlock the locker, is called the public DCCL key.
Together they form a pair of crypto keys.
Digital Chip Card Locker, or "DCCL" for short, is an authentic Blue2Digital product that comprises algorithms based on cryptography and digital signal processing.
DCCL stands out as a simple and reliable tool for digitally signing and authenticating images, audio and video recordings, PDF documents, animated GIFs and other files.
The DCCL algorithm is perfect for implementation in security protocols and e-business systems that gravitate towards preserving authenticity and integrity of data and preventing their misuse.
#Pay as you go
It costs $1 to digitally sign a file.
Digital signature verification is free.
The minimum price to pay is $20, which allows you to use this service 20 times.
Payment via PayPal is recommended.
If you would like to pay using another service, please contact us to send you payment instructions.
Once the payment is completed, you will receive a PIN code that you should keep secret. It is for your use only.
You can choose to pay $20, $50 or $100 to use this service 20, 50 or 100 times, respectively. There are no additional costs or hidden fees.
#About Digital Chip Card Locker
When a file is shared online via email or messaging apps between friends or business partners, how do we know if it's really from the person we think it is?
How can we verify the authenticity of that file? And how can we confirm that the file we received wasn't intercepted and modified somewhere along the way?
A viable solution lies in introducing Digital Chip Card Locker, or "DCCL" for short.
Digital Chip Card Locker is a simple and reliable tool for digitally signing and authenticating images, audio and video recordings, PDF documents, animated GIFs and other files.
You don't need any prior knowledge or licensed equipment to use it.
#How it works
With a digital signature that is virtually attached to the file, we know exactly who signed the file and when it was signed. Such a file is uniquely tagged and can be identified and tracked online.
It cannot be forged or altered, as modified files can no longer be verified.
The DCCL algorithm is perfect for implementation in security protocols and e-business systems that gravitate towards preserving authenticity and integrity of data and preventing their misuse.
See more...
#About Digital Chip Card Locker
When a file is shared online via email or messaging apps between friends or business partners, how do we know if it's really from the person we think it is?
How can we verify the authenticity of that file? And how can we confirm that the file we received wasn't intercepted and modified somewhere along the way?
A viable solution lies in introducing Digital Chip Card Locker, or "DCCL" for short.
Digital Chip Card Locker is a simple and reliable tool for digitally signing and authenticating images, audio and video recordings, PDF documents, animated GIFs and other files.
You don't need any prior knowledge or licensed equipment to use it.
#How it works
With a digital signature that is virtually attached to the file, we know exactly who signed the file and when it was signed. Such a file is uniquely tagged and can be identified and tracked online.
It cannot be forged or altered, as modified files can no longer be verified.
The DCCL algorithm is perfect for implementation in security protocols and e-business systems that gravitate towards preserving authenticity and integrity of data and preventing their misuse.
See more...
#About Digital Chip Card Locker
Digital Chip Card Locker, or "DCCL" for short, is a simple and reliable tool for digitally signing and authenticating images, audio and video recordings, PDF documents, animated GIFs and other files.
You don't need any prior knowledge or licensed equipment to use it.
The DCCL algorithm is perfect for implementation in security protocols and e-business systems that gravitate towards preserving authenticity and integrity of data and preventing their misuse.
See more...
#About Digital Chip Card Locker
Digital Chip Card Locker, or "DCCL" for short, is a simple and reliable tool for digitally signing and authenticating images, audio and video recordings, PDF documents, animated GIFs and other files.
You don't need any prior knowledge or licensed equipment to use it.
The DCCL algorithm is perfect for implementation in security protocols and e-business systems that gravitate towards preserving authenticity and integrity of data and preventing their misuse.
See more...
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