스마트공동인증 (SKT/KT/LGU+ 전용)

1.6
2.91K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Smart joint authentication update!
Renewed UI to be more convenient with enhanced security and optimization

You can use the certificate easily and safely by saving it in the security area of ​​your smartphone through the smart co-authentication app!
Electronic signatures for financial transactions, identity verification, etc. at once, even in places without certificates!

■ Supported OS changes
- Android minimum supported OS.ver (existing 4.0 → current 6.0)
- Minimum supported OS.ver for fingerprint recognition (existing 5.0 → current 6.0)

[Major service information]
1. Copy and save the certificate to the secure area
Copy the certificate from your PC or smartphone to the smartphone security area and store it safely.

2. Electronic signature
Smart joint authentication app Easy electronic signature with password or fingerprint recognition!

3. Account and security card management
Register and safely manage frequently used accounts and security cards!

4. Dream Pass
Securely store passwords for frequently used platforms and create new passwords!



[Guide to using smart joint authentication service]
1. Sign up for service
- As an additional service for SKT, KT, and LGU+, the communication fee is charged at 990 won per month (including VAT, prorated).
- Inquiry: ☎ 114 without area code / Dream Security Customer Center ☎ 1688-0124

2. Import the certificate
Retrieve the certificate from the brand site (https://smartcert.kr) or the certificate management app to the Smart Joint Authentication app and save it in the secure area.

3. Sign electronically
① In the electronic signature program, select ‘Smart Certification’ or ‘Security Token’ → Mobile_SmartCert and enter the number.
② Enter the last 2 digits of the authentication number in the smart joint authentication app.
③ Complete signature with app password or biometric authentication

[Note]
1. Security area certificate cannot be copied elsewhere.
2. Certificate must be deleted before deleting the app
3. Initialize the app and reset the password if the password is incorrect 10 times.
Updated on
Jul 28, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

1.6
2.88K reviews
Shannon Kindred
January 26, 2024
Says my phone is prepaid when it isn't. Refuses to authenticate.
1 person found this review helpful
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Kumar Pathak
March 6, 2023
Its useless... he'll...😡😡😡
1 person found this review helpful
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강민철
March 5, 2025
이딴걸 돈받고 파냐 쓰레기가
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What’s new

기능수정

App support

Phone number
+8216880124
About the developer
(주)드림시큐리티
mobile@dreamsecurity.com
성동구 아차산로 126, 10층(성수동2가, 더리브 세종타워) 성동구, 서울특별시 04783 South Korea
+82 10-7117-7314

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