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Post quantum security experiment

In cryptography there are 4 basic attack classifications:

  • Ciphertext-Only Attack
  • Known-Plaintext Attack
  • Chosen-Plaintext Attack
  • Chosen-Ciphertext Attack

In Katz & Lindell’s textbook (2nd edition) one can find a security definition and experiment for those attacks. E.g. to define CPA-security. Those experiment are between a arbitrary adversary and a challenger. I was wondering, if there exists such a definition and experiment for post quantum security. If this is the case, can someone write them down? If that’s not the case, can someone explain why?

Paytm Founder: Crypto Is Here to Stay and Will Become Mainstream in 5 Years

The founder of Paytm, a major digital payment company in India, is “very positive about crypto.” Noting that cryptocurrency is here to stay, he expects it to become a mainstream technology in a few years. Paytm Founder Is ‘Very Positive About Crypto’ Vijay Shekhar Sharma, the founder of Paytm, said at a virtual conference organized::Listen

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The founder of Paytm, a major digital payment company in India, is “very positive about crypto.” Noting that cryptocurrency is here to stay, he expects it to become a mainstream technology in a few years.

Paytm Founder Is ‘Very Positive About Crypto’

Vijay Shekhar Sharma, the founder of Paytm, said at a virtual conference organized by the Indian Chamber of Commerce (ICC) Thursday that cryptocurrency is here to stay, PTI reported. He added that crypto is Silicon Valley’s answer to Wall Street.

Paytm is an Indian multinational technology company that specializes in digital payments. The company completed an initial public offering (IPO) last week. In its IPO filing, Paytm revealed that it has 337 million registered consumers and 22 million merchants.

Sharma opined:

I am very positive about crypto. It is fundamentally based on cryptography and will be the mainstream technology in a few years like the internet which is (now) part of daily life.

The Paytm founder admitted that cryptocurrency is currently being used in a speculative manner, elaborating:

Every government is confused. In five years, it will be the mainstream technology.

Sharma believes that people will realize how the world would be without crypto. However, he stressed that crypto will not replace sovereign currencies, like the Indian rupee.

The Paytm founder also said that once his company’s revenue crosses $1 billion, Paytm will be launched in developed countries. “Now Paytm in a JV with a Japanese entity is running Japan’s largest payments system. Later we will go without a partner,” he shared.

Early this month, Paytm Chief Financial Officer (CFO) Madhur Deora indicated that his company is open to offering bitcoin services if crypto assets become legal in India.

The Indian government is currently pushing for cryptocurrency legislation. A cryptocurrency bill is expected to be introduced and passed during the winter session of parliament which starts next week. The bill seeks to ban private cryptocurrencies with some exceptions. However, the bill has not been published and there have been conflicting reports coming out of India regarding the content of the bill.

What do you think about the comments by the Paytm founder? Let us know in the comments section below.

Bitcoin News
Regulation, India, indian crypto, indian cryptocurrency, indian government, paytm, vijay shekhar sharma

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Post quantum security experiment

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