The People's Bank of China (PBOC) will strengthen data security and personal information protection as it forges ahead with domestic testing of the digital yuan, it said in a white paper that is the first comprehensive disclosure of its plans.
China is a front-runner in the global race to launch central bank digital currencies (CBDC) and is testing a digital yuan, or e-CNY, in major cities including Shenzhen, Beijing and Shanghai but has not set a timetable for its official rollout.
Many analysts believe the e-CNY will bolster the currency's global status as China seeks ultimately to break the dominance of the dollar settlement system.
"The internationalisation of a currency is a natural result of market selection," the PBOC said in the white paper, downplaying its global ambition.
"Though technically ready for cross-border use, e-CNY is still designed mainly for domestic retail payments at present."
The PBOC said it will explore cross-border payment programs in coordination with other central banks, "preconditioned on mutual respect to monetary sovereignty and compliance".
The PBOC "is willing to participate actively in international exchanges of views on digital fiat currency and discuss standards setting ... in order to jointly advance the development of the international monetary system," it added.
The e-CNY digitalises a portion of China's physical notes and coins, and adopts a two-tier distribution system, under which PBOC issues the digital currency to banks, which pass the money to individuals and companies.
In an apparent attempt to ease concerns over government surveillance, the PBOC on Friday vowed to protect personal information and privacy, while also guarding against misuse of e-CNY in Internet gambling, money laundering and tax evasion.
The e-CNY system collects less transaction information than traditional payment, and does not provide information to third parties or other government agencies unless stipulated otherwise in laws and regulations, the PBOC said.
Internally, the PBOC sets up a firewall for e-CNY-related information, and strictly implements privacy protocols, it said.
The PBOC cited the rapid growth in cryptocurrencies, especially global stablecoins, as a driver for research and development of e-CNY.
Cryptocurrencies' lack of intrinsic value, acute price fluctuations, low trading efficiencies and huge energy consumption make them unfit for use in daily economic activities, the PBOC said in the white paper.
"In addition, cryptocurrencies are mostly speculative instruments, and therefore pose potential risks to financial security and social stability."
In late May, China's state council, or cabinet, vowed to crack down on bitcoin mining and trading activities, citing underlying financial risks.
(Reporting by Judy Hua and Kevin Yao; Additional reporting by Samuel ShenEditing by Peter Graff, Kim Coghill and Catherine Evans)