Disadvantages of elliptic curve encryption
The disadvantage of elliptic curve encryption is that DSA is very sensitive to bad RNG. According to the query related information, ECDSA (Elliptic Curve Digital Signature Algorithm) is the elliptic curve implementation of DSA (Digital Signature Algorithm). Elliptic curve encryption can provide the same security level as RSA using small keys. Another disadvantage is that DSA is sensitive to bad RNG.