Elizabeth White: Making crypto easier to use in the real world - CoinGeek https://coingeek.com/elizabeth-white-making-crypto-easier-use-real-world/
The Story of OP_CHECKDATASIG
Mengerian
Dec 15, 2018

"Abstract: This article describes the design of an opcode recently added to the Bitcoin Cash scripting language called “OP_CHECKDATASIG” [1]. This opcode was activated on the Bitcoin Cash network during the recent upgrade. It allows Script to validate arbitrary messages from outside the blockchain, opening up many exciting possible use cases (see Appendix A)."

"OP_CHECKDATASIG is based on Andrew Stone’s OP_DATASIGVERIFY proposal [2]. The original motivation behind the opcode was to be able to validate signatures from an “oracle” on messages from outside the blockchain. This use case has been described in an article by Andrew Stone [3]. After the original proposal was made, it went through a series of changes and design refinements based on review and discussion by stakeholders and subject-matter experts [4]."


https://medium.com/@Mengerian/the-story-of-op-checkdatasig-c2b1b38e801a
Forwarded from Digital forensic (@RamonQuesada)
crypto_aml_report_2018q3.pdf
1.3 MB
Forwarded from Cyber Security News
Cryptocurrency Thefts, Scams Hit $1.7 Billion in 2018-Report
By REUTERS

Cryptocurrencies stolen from exchanges and scammed from investors surged more than 400 percent in 2018 to around $1.7 billion, according to a report from U.S.-based cyber security firm CipherTrace released on Tuesday.

Published: January 29, 2019 at 05:30PM

via NYT https://www.nytimes.com/reuters/2019/01/29/business/29reuters-crypto-currency-crime.html?partner=IFTTT